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• How do you re-mount an ext3 fs readwrite after it gets mounted readonly from a disk error?

  - by cagenut

  Its a relatively common problem when something goes wrong in a SAN for ext3 to detect the disk write errors and remount the filesystem read-only. Thats all well and good, only when the SAN is fixed I can't figure out how to re-re-mount the filesystem read-write without rebooting. Behold: [root@localhost ~]# multipath -ll mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=2][active] \_ 1:0:0:1 sdb 8:16 [active][ready] \_ 2:0:0:1 sdc 8:32 [active][ready] [root@localhost ~]# mount /dev/mapper/mpath0 /mnt/foo [root@localhost ~]# touch /mnt/foo/blah All good, now I yank the LUN out from under it. [root@localhost ~]# touch /mnt/foo/blah [root@localhost ~]# touch /mnt/foo/blah touch: cannot touch `/mnt/foo/blah': Read-only file system [root@localhost ~]# tail /var/log/messages Mar 18 13:17:33 localhost multipathd: sdb: tur checker reports path is down Mar 18 13:17:34 localhost multipathd: sdc: tur checker reports path is down Mar 18 13:17:35 localhost kernel: Aborting journal on device dm-2. Mar 18 13:17:35 localhost kernel: Buffer I/O error on device dm-2, logical block 1545 Mar 18 13:17:35 localhost kernel: lost page write due to I/O error on dm-2 Mar 18 13:17:36 localhost kernel: ext3_abort called. Mar 18 13:17:36 localhost kernel: EXT3-fs error (device dm-2): ext3_journal_start_sb: Detected aborted journal Mar 18 13:17:36 localhost kernel: Remounting filesystem read-only It only thinks its read-only, in reality its not even there. [root@localhost ~]# multipath -ll sdb: checker msg is "tur checker reports path is down" sdc: checker msg is "tur checker reports path is down" mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=0][enabled] \_ 1:0:0:1 sdb 8:16 [failed][faulty] \_ 2:0:0:1 sdc 8:32 [failed][faulty] [root@localhost ~]# ll /mnt/foo/ ls: reading directory /mnt/foo/: Input/output error total 20 -rw-r--r-- 1 root root 0 Mar 18 13:11 bar How it still remembers that 'bar' file being there... mystery, but not important right now. Now I re-present the LUN: [root@localhost ~]# tail /var/log/messages Mar 18 13:23:58 localhost multipathd: sdb: tur checker reports path is up Mar 18 13:23:58 localhost multipathd: 8:16: reinstated Mar 18 13:23:58 localhost multipathd: mpath0: queue_if_no_path enabled Mar 18 13:23:58 localhost multipathd: mpath0: Recovered to normal mode Mar 18 13:23:58 localhost multipathd: mpath0: remaining active paths: 1 Mar 18 13:23:58 localhost multipathd: dm-2: add map (uevent) Mar 18 13:23:58 localhost multipathd: dm-2: devmap already registered Mar 18 13:23:59 localhost multipathd: sdc: tur checker reports path is up Mar 18 13:23:59 localhost multipathd: 8:32: reinstated Mar 18 13:23:59 localhost multipathd: mpath0: remaining active paths: 2 Mar 18 13:23:59 localhost multipathd: dm-2: add map (uevent) Mar 18 13:23:59 localhost multipathd: dm-2: devmap already registered [root@localhost ~]# multipath -ll mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=2][enabled] \_ 1:0:0:1 sdb 8:16 [active][ready] \_ 2:0:0:1 sdc 8:32 [active][ready] Great right? It says [rw] right there. Not so fast: [root@localhost ~]# touch /mnt/foo/blah touch: cannot touch `/mnt/foo/blah': Read-only file system OK, doesn't do it automatically, I'll just give it a little push: [root@localhost ~]# mount -o remount /mnt/foo mount: block device /dev/mapper/mpath0 is write-protected, mounting read-only Noooooooooo. I have tried all sorts of different mount/tune2fs/dmsetup commands and I cannot figure out how to get it to un-flag the block device as write-protected. Rebooting will fix it, but I'd much rather do it on-line. An hour of googling has gotten me nowhere either. Save me ServerFault.

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• How do you re-mount an ext3 fs readwrite after it gets mounted readonly from a disk error?

  - by cagenut

  Its a relatively common problem when something goes wrong in a SAN for ext3 to detect the disk write errors and remount the filesystem read-only. Thats all well and good, only when the SAN is fixed I can't figure out how to re-re-mount the filesystem read-write without rebooting. Behold: [root@localhost ~]# multipath -ll mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=2][active] \_ 1:0:0:1 sdb 8:16 [active][ready] \_ 2:0:0:1 sdc 8:32 [active][ready] [root@localhost ~]# mount /dev/mapper/mpath0 /mnt/foo [root@localhost ~]# touch /mnt/foo/blah All good, now I yank the LUN out from under it. [root@localhost ~]# touch /mnt/foo/blah [root@localhost ~]# touch /mnt/foo/blah touch: cannot touch `/mnt/foo/blah': Read-only file system [root@localhost ~]# tail /var/log/messages Mar 18 13:17:33 localhost multipathd: sdb: tur checker reports path is down Mar 18 13:17:34 localhost multipathd: sdc: tur checker reports path is down Mar 18 13:17:35 localhost kernel: Aborting journal on device dm-2. Mar 18 13:17:35 localhost kernel: Buffer I/O error on device dm-2, logical block 1545 Mar 18 13:17:35 localhost kernel: lost page write due to I/O error on dm-2 Mar 18 13:17:36 localhost kernel: ext3_abort called. Mar 18 13:17:36 localhost kernel: EXT3-fs error (device dm-2): ext3_journal_start_sb: Detected aborted journal Mar 18 13:17:36 localhost kernel: Remounting filesystem read-only It only thinks its read-only, in reality its not even there. [root@localhost ~]# multipath -ll sdb: checker msg is "tur checker reports path is down" sdc: checker msg is "tur checker reports path is down" mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=0][hwhandler=0][rw] \_ round-robin 0 [prio=0][enabled] \_ 1:0:0:1 sdb 8:16 [failed][faulty] \_ 2:0:0:1 sdc 8:32 [failed][faulty] [root@localhost ~]# ll /mnt/foo/ ls: reading directory /mnt/foo/: Input/output error total 20 -rw-r--r-- 1 root root 0 Mar 18 13:11 bar How it still remembers that 'bar' file being there... mystery, but not important right now. Now I re-present the LUN: [root@localhost ~]# tail /var/log/messages Mar 18 13:23:58 localhost multipathd: sdb: tur checker reports path is up Mar 18 13:23:58 localhost multipathd: 8:16: reinstated Mar 18 13:23:58 localhost multipathd: mpath0: queue_if_no_path enabled Mar 18 13:23:58 localhost multipathd: mpath0: Recovered to normal mode Mar 18 13:23:58 localhost multipathd: mpath0: remaining active paths: 1 Mar 18 13:23:58 localhost multipathd: dm-2: add map (uevent) Mar 18 13:23:58 localhost multipathd: dm-2: devmap already registered Mar 18 13:23:59 localhost multipathd: sdc: tur checker reports path is up Mar 18 13:23:59 localhost multipathd: 8:32: reinstated Mar 18 13:23:59 localhost multipathd: mpath0: remaining active paths: 2 Mar 18 13:23:59 localhost multipathd: dm-2: add map (uevent) Mar 18 13:23:59 localhost multipathd: dm-2: devmap already registered [root@localhost ~]# multipath -ll mpath0 (36001f93000a310000299000200000000) dm-2 XIOTECH,ISE1400 [size=1.1T][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=2][enabled] \_ 1:0:0:1 sdb 8:16 [active][ready] \_ 2:0:0:1 sdc 8:32 [active][ready] Great right? It says [rw] right there. Not so fast: [root@localhost ~]# touch /mnt/foo/blah touch: cannot touch `/mnt/foo/blah': Read-only file system OK, doesn't do it automatically, I'll just give it a little push: [root@localhost ~]# mount -o remount /mnt/foo mount: block device /dev/mapper/mpath0 is write-protected, mounting read-only The hell you are: [root@localhost ~]# mount -o remount,rw /mnt/foo mount: block device /dev/mapper/mpath0 is write-protected, mounting read-only Noooooooooo. I have tried all sorts of different mount/tune2fs/dmsetup commands and I cannot figure out how to get it to un-flag the block device as write-protected. Rebooting will fix it, but I'd much rather do it on-line. An hour of googling has gotten me nowhere either. Save me ServerFault.

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• Installing Ubuntu 12.04.1 x64 with Fake RAID 1 [SOLVED]

  - by Arkadius

  I had: Software: Dual boot with Windows XP Ubuntu 10.04 LTS x32 Hardware Fake RAID 1 (mirroring) with 2x1 TB: Partition 1 - Windows Partition 2 - SWAP Partition 3 - / (root) Partition 4 - Extended Partition 5 - /home Partition 6 - /data arek@domek:/var/log/installer$ sudo fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000de1b9 Device Boot Start End Blocks Id System /dev/sda1 * 63 524297339 262148638+ 7 HPFS/NTFS/exFAT /dev/sda2 524297340 528506369 2104515 82 Linux swap / Solaris /dev/sda3 528506370 570468149 20980890 83 Linux /dev/sda4 570468150 1953118439 691325145 5 Extended /dev/sda5 570468213 675340469 52436128+ 83 Linux /dev/sda6 675340533 1953118439 638888953+ 83 Linux Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000de1b9 Device Boot Start End Blocks Id System /dev/sdb1 * 63 524297339 262148638+ 7 HPFS/NTFS/exFAT /dev/sdb2 524297340 528506369 2104515 82 Linux swap / Solaris /dev/sdb3 528506370 570468149 20980890 83 Linux /dev/sdb4 570468150 1953118439 691325145 5 Extended /dev/sdb5 570468213 675340469 52436128+ 83 Linux /dev/sdb6 675340533 1953118439 638888953+ 83 Linux arek@domek:/var/log/installer$ ls -l /dev/mapper/ total 0 crw------- 1 root root 10, 236 Oct 7 20:17 control lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha -> ../dm-0 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha1 -> ../dm-1 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha2 -> ../dm-2 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha3 -> ../dm-3 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha4 -> ../dm-4 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha5 -> ../dm-5 lrwxrwxrwx 1 root root 7 Oct 7 20:17 pdc_jhjbcaha6 -> ../dm-6 I wanted to upgrade from 10.04 x32 to 12.04 x64 using FRESH installation. So, run installation of Ubuntu 12.04.1 x64 LTS using alternate CD. During the installation I selected manual partitioning and to: - Use and Format / (root) - Use and Format SWAP - Use and Keep data on /home - Use and Keep data on /data After I clicked "Continue" I get error creating and formatting SWAP partition. I go to terminal with Alt + F2 (?) and hit enter. I discovered that there was visible RAID as only disk with NO partitions. Something like this: arek@domek:/var/log/installer$ ls -l /dev/mapper/ lrwxrwxrwx 1 root root 7 Oct 7 20:17 /dev/mapper/pdc_jhjbcaha -> ../dm-0 arek@domek:/var/log/installer$ ls -l /dev/dm* brw-rw---- 1 root disk 252, 0 Oct 7 20:17 /dev/dm-0 So I switched to log console Alt+F3 (?) and saw errors like below: Oct 7 14:02:45 check-missing-firmware: /dev/.udev/firmware-missing does not exist, skipping Oct 7 14:02:45 check-missing-firmware: /run/udev/firmware-missing does not exist, skipping Oct 7 14:02:45 check-missing-firmware: no missing firmware in /dev/.udev/firmware-missing /run/udev/firmware-missing Oct 7 14:02:45 anna-install: Installing dmraid-udeb Oct 7 14:02:45 anna[12599]: DEBUG: retrieving dmraid-udeb 1.0.0.rc16-4.1ubuntu8 Oct 7 14:02:49 anna[12599]: DEBUG: retrieving libdmraid1.0.0.rc16-udeb 1.0.0.rc16-4.1ubuntu8 Oct 7 14:02:49 anna[12599]: DEBUG: retrieving kpartx-udeb 0.4.9-3ubuntu5 Oct 7 14:02:49 disk-detect: Serial ATA RAID disk(s) detected. Oct 7 14:02:55 disk-detect: Enabling dmraid support. Oct 7 14:02:55 disk-detect: RAID set "pdc_jhjbcaha" was activated Oct 7 14:02:55 HERE --> dmraid-activate: ERROR: Cannot retrieve RAID set information for pdc_jhjbcaha Oct 7 14:02:56 check-missing-firmware: /dev/.udev/firmware-missing does not exist, skipping Oct 7 14:02:56 check-missing-firmware: /run/udev/firmware-missing does not exist, skipping Oct 7 14:02:56 check-missing-firmware: no missing firmware in /dev/.udev/firmware-missing /run/udev/firmware-missing Oct 7 14:02:57 main-menu[428]: DEBUG: resolver (libnewt0.52): package doesn't exist (ignored) Oct 7 14:02:57 main-menu[428]: DEBUG: resolver (ext2-modules): package doesn't exist (ignored) Oct 7 14:02:57 main-menu[428]: INFO: Menu item 'partman-base' selected Oct 7 14:02:57 kernel: [ 316.512999] NTFS driver 2.1.30 [Flags: R/O MODULE]. Oct 7 14:02:57 kernel: [ 316.523221] Btrfs loaded Oct 7 14:02:57 kernel: [ 316.534781] JFS: nTxBlock = 8192, nTxLock = 65536 Oct 7 14:02:57 kernel: [ 316.554749] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled Oct 7 14:02:57 kernel: [ 316.555336] SGI XFS Quota Management subsystem Oct 7 14:02:58 md-devices: mdadm: No arrays found in config file or automatically Oct 7 14:02:58 partman: No matching physical volumes found Oct 7 14:02:58 partman: No volume groups found Oct 7 14:02:58 partman: Reading all physical volumes. This may take a while... Oct 7 14:02:58 partman-lvm: No volume groups found Oct 7 14:02:58 partman: Error running 'tune2fs -l /dev/mapper/pdc_jhjbcaha' Oct 7 14:02:58 partman: Error running 'tune2fs -l /dev/mapper/pdc_jhjbcaha' Oct 7 14:02:58 partman: Error running 'tune2fs -l /dev/mapper/pdc_jhjbcaha' Oct 7 14:06:11 HERE --> partman: mkswap: can't open '/dev/mapper/pdc_jhjbcaha2': No such file or directory Oct 7 14:07:28 init: starting pid 401, tty '/dev/tty2': '-/bin/sh' Oct 7 14:15:00 net/hw-detect.hotplug: Detected hotpluggable network interface eth0 Oct 7 14:15:00 net/hw-detect.hotplug: Detected hotpluggable network interface lo As You can see there are 2 errors Oct 7 14:02:55 dmraid-activate: ERROR: Cannot retrieve RAID set information for pdc_jhjbcaha and Oct 7 14:06:11 partman: mkswap: can't open '/dev/mapper/pdc_jhjbcaha2': No such file or directory I looked in the internet and try to run command "dmraid -ay" and get something like that: dmraid -ay /dev/mapper/pdc_jhjbcaha -> Already activated /dev/mapper/pdc_jhjbcaha1 -> Successfully activated /dev/mapper/pdc_jhjbcaha2 -> Successfully activated /dev/mapper/pdc_jhjbcaha3 -> Successfully activated /dev/mapper/pdc_jhjbcaha4 -> Successfully activated /dev/mapper/pdc_jhjbcaha5 -> Successfully activated /dev/mapper/pdc_jhjbcaha6 -> Successfully activated Then I returned to installer with Alt+F1 (?) and click "Return" to return to partitioning menu. I did NOT change anything just selected again "Continue" and everything goes smoothly. I hope this will help someone. arkadius

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• Advantages/disadvantages of Glassfish v3 Prelude vs Springsource dm server for Web applications?

  - by cletus

  Both of these appservers are at least in part OSGI based. One (Glassfish) is obviously J2EE while the other isn't. Now I'm at the stage of choosing a platform for a new project and the natural choice is Glassfish v3 Prelude. This does raise the issue of perhaps we should be using S2AP instead. The question then is this: does the springsource dm server offer any compelling reason to use it over Glassfish? And vice versa.

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• winsock compile error

  - by ioil

  The following errors are from a file with just windows and winsock2 included. C:\Users\ioil\Desktop\dm\bin>dmc sockit.c typedef struct fd_set { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(85) : Error: 'fd_set' is already defined } fd_set; ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(88) : Error: identifier or '( declarator )' expected struct timeval { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(129) : Error: 'timeval' is already defined }; ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(132) : Error: identifier or '( declarator )' expected struct hostent { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(185) : Error: 'hostent' is already defined Fatal error: too many errors --- errorlevel 1 C:\Users\ioil\Desktop\dm\bin> What's already been tried : placing the winsock.dll file in the same directory as the compiler and program to be compiled, placing it in the system32 directory, and entering it in the registry with the regsrv32 command. Don't really know where to go from here, appreciate any advice . . .

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• winsock compile crash

  - by ioil

  The following errors are from a file with just windows and winsock2 included. C:\Users\ioil\Desktop\dm\bin>dmc sockit.c typedef struct fd_set { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(85) : Error: 'fd_set' is already defined } fd_set; ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(88) : Error: identifier or '( declarator )' expected struct timeval { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(129) : Error: 'timeval' is already defined }; ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(132) : Error: identifier or '( declarator )' expected struct hostent { ^ C:\Users\ioil\Desktop\dm\bin\..\include\win32\WINSOCK2.H(185) : Error: 'hostent' is already defined Fatal error: too many errors --- errorlevel 1 C:\Users\ioil\Desktop\dm\bin> What's already been tried : placing the winsock.dll file in the same directory as the compiler and program to be compiled, placing it in the system32 directory, and entering it in the registry with the regsrv32 command. Don't really know where to go from here, appreciate any advice . . .

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• How to configure Spring-DM OSGi service for new instance per call?

  - by Bhav

  I'm starting to delve into using Spring DM and OSGi services in an RCP application. I've created a service which is used by another bundle in the RCP application. It does a lookup of the service via calls to getBundleContext().getServiceReference() using the explicit bundle names and service class names. I'm not using DI anywhere yet. The issue I'm running into is that the service that is returned in the requesting bundle is a singleton. At times I notice a threading issue since it is a "stateful" service. How do I configure the application to get back a new service instance with each call? Here is my spring xml file contents which registers the service: <bean id="myServBean" class="com.xyz.ClassImpl"/> <osgi:service ref="myServBean" class="com.xyz.Class"/>

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• Can't connect to local SQL Server

  - by D.M.

  I'm banging my head against the wall here and can't get things figured out. Yesterday I uninstalled SQL Server 2008 Express and installed a full copy of SQL Server 2008 R2. Everything installed fine but I can't connect to the database to save my life. There is a similar question here that never got answered and I'm not sure if this may be specific to 2008 R2 and how I may have installed. Under my old configuration (SQL Express) I connected with "DM\SQLEXPRESS" just fine. So far I've tried: DM\MSSQLSERVER - .\MSSQLSERVER - \MSSQLSERVER - MSSQLSERVER - DM\Dave\MSSQLSERVER and I get the "cannot connect to server" error every time. I have the service installed as well as the SQL Server Browser that I have started. If anyone had any suggestions that would be great.

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• Recommend a best tool for object model(OM) and data model(DM) respectively?

  - by user11671

  Here is the explanation of the above two notations: http://stackoverflow.com/questions/2446002/whats-the-difference-between-data-model-and-object-model What's the best tools you ever used?

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• Why is mkfs overwriting the LUKS encryption header on LVM on RAID partitions on Ubuntu 12.04?

  - by Starchy

  I'm trying to setup a couple of LUKS-encrypted partitions to be mounted after boot-time on a new Ubuntu server which was installed with LVM on top of software RAID. After running cryptsetup luksFormat, the LUKS header is clearly visible on the volume. After running any flavor of mkfs, the header is overwritten (which does not happen on other systems that were setup without LVM), and cryptsetup will no longer recognize the device as a LUKS device. # cryptsetup -y --cipher aes-cbc-essiv:sha256 --key-size 256 luksFormat /dev/dm-1 WARNING! ======== This will overwrite data on /dev/dm-1 irrevocably. Are you sure? (Type uppercase yes): YES Enter LUKS passphrase: Verify passphrase: # hexdump -C /dev/dm-1|head -n5 00000000 4c 55 4b 53 ba be 00 01 61 65 73 00 00 00 00 00 |LUKS....aes.....| 00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000020 00 00 00 00 00 00 00 00 63 62 63 2d 65 73 73 69 |........cbc-essi| 00000030 76 3a 73 68 61 32 35 36 00 00 00 00 00 00 00 00 |v:sha256........| 00000040 00 00 00 00 00 00 00 00 73 68 61 31 00 00 00 00 |........sha1....| # cryptsetup luksOpen /dev/dm-1 web2-var # mkfs.ext4 /dev/mapper/web2-var [..snip..] Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done # hexdump -C /dev/dm-1|head -n5 # cryptsetup luksClose /dev/mapper/web2-var 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00000400 00 40 5d 00 00 88 74 01 66 a0 12 00 17 f2 6d 01 |.@]...t.f.....m.| 00000410 f5 3f 5d 00 00 00 00 00 02 00 00 00 02 00 00 00 |.?].............| 00000420 00 80 00 00 00 80 00 00 00 20 00 00 00 00 00 00 |......... ......| # cryptsetup luksOpen /dev/dm-1 web2-var Device /dev/dm-1 is not a valid LUKS device. I have also tried mkfs.ext2 with the same result. Based on setups I've done successfully on Debian and Ubuntu (but not LVM or Ubuntu 12.04), it's hard to see why this is failing.

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• Problems mounting HPUX LVM+VXFS filesystem on Linux

  - by golimar

  I have a physical disk from a HPUX system that I need to access from a Debian Linux for ia64 system. From the hpux-lvm-tools project I have the tools to access the HPUX LVMs (Linux LVM has a different format) and I also have the freevxfs driver. I know beforehand that the disk has three partitions, and that the biggest one contains LVM volumes, and some of those are VxFS filesystems. I can see the partitions: # cat /proc/partitions major minor #blocks name 8 32 143374744 sdc 8 33 512000 sdc1 8 34 142452736 sdc2 8 35 409600 sdc3 It finds a VG in one of the disk partitions: # ./vgscan_hpux On /dev/sdc2 - vg1328874723 # ./pvdisplay_hpux /dev/sdc2 PV General Information ---------------------- VG Creation Time Fri Feb 10 12:52:03 2012 Physical Volume ID 1766760336 1328874723 Volume Group ID 1766760336 1328874723 Physical Volumes in VG 1766760336 1328874723 VG Actication Mode 0 - LOCAL PE Size 64 MBs Lvol sizes ---------- lvol1 - 8 Extents - 512 MBs lvol2 - 192 Extents - 12288 MBs lvol3 - 16 Extents - 1024 MBs ... lvol21 - 13 Extents - 832 MBs lvol22 - 224 Extents - 14336 MBs lvol23 - 16 Extents - 1024 MBs Then I activate that VG and some new devices appear in my system: # ./pvactivate_hpux /dev/sdc2 VG vg1328874723 Activated succesfully with 23 lvols. # # ll /dev/mapper/ total 0 crw------- 1 root root 10, 59 Nov 26 16:08 control lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol1 -> ../dm-0 lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol10 -> ../dm-9 ... lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol8 -> ../dm-7 lrwxrwxrwx 1 root root 7 Nov 26 16:38 vg1328874723-lvol9 -> ../dm-8 But: # mount /dev/mapper/vg1328874723-lvol18 /mnt/tmp mount: you must specify the filesystem type # mount -t vxfs /dev/mapper/vg1328874723-lvol18 /mnt/tmp mount: wrong fs type, bad option, bad superblock on /dev/mapper/vg1328874723-lvol18, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so # lsmod |grep vxfs freevxfs 23905 0 I also tried to identify the raw data with the file command and it just says 'data': # file -s /dev/mapper/vg1328874723-lvol18 /dev/mapper/vg1328874723-lvol18: symbolic link to `../dm-17' # file -s /dev/dm-17 /dev/dm-17: data # Any clues?

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• Class basic operators

  - by swan

  Hi, Is it necessary to have a copy constructor, destructor and operator= in a class that have only static data member, no pointer class myClass{ int dm; public: myClass(){ dm = 1; } ~myClass(){ } // Is this line usefull ? myClass(const myClass& myObj){ // and that operator? this->dm = myObj.dm; } myClass& operator=(const myClass& myObj){ // and that one? if(this != &myObj){ this->dm = myObj.dm; } return *this; } }; I read that the compiler build one for us, so it is better to not have one (when we add a data member we have to update the operators)

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• Unicenter Software Delivery 4 not able to connect to MS SQL 2000 Database after W2003 SP2 upgrade

  - by grub

  Hello Everyone Yesterday I installed the Windows Server 2003 Service Pack 2 on a Windows Server 2003 which has Unicenter Software Delivery 4 installed. Prior to the installation I disabled every CA service on the server (Brightstor, SDO , RCO, TNG) and the MS SQL 2000 service. After the installation of the SP2 I enabled the services again but the Unicenter Service is not able to connect to the MS SQL 2000 Database anymore. The database itself is up and running and I can connect to it with the Enterprise Manager. A dbcc checkdb doesnt return any errors on the Unicenter database. The Unicenter service throws the following error messages during startup: IM[1] 27/05 10:38:31,272 Installation Manager in init phase IM[1] 27/05 10:38:31,694 Process IM(L) - [004152] failed to open database SDDATA. dbopen() call failed. IM[1] 27/05 10:38:31,694 sqls error details: IM[1] 27/05 10:38:31,694 (null) IM[1] 27/05 10:38:32,069 ##EXCEPTION## TableError T@:PS_SQLS\isam_db.cxx:744. IM[1] 27/05 10:38:32,069 ##EXCEPTION## TableError C@:TaskmgrL\ASMTML.CXX:596. IM[1] 27/05 10:38:32,069 ##EXCEPTION## ErrorCode: 4711 in SDDATA:Isam::Isam. Process IM(L) - [004152] failed to open database SDDATA. dbopen() call failed. IM[1] 27/05 10:38:32,069 sqls error details: IM[1] 27/05 10:38:32,069 (null) IM[1] 27/05 10:38:32,069 returned 0. IM[1] 27/05 10:38:32,084 Persistent Storage could not be opened. Error cause is found in the ASM Event Log. Restart Task Manager. IM[1] 27/05 10:38:32,084 Failed to open database. IM[1] 27/05 10:38:32,084 Installation Manager ends> If I check the Unicenter configutation with *chkmib_l* the tool throws an exception and creates a small dump file. An Exception Occurred: Time: 27/05 09:49:38,928 Reason: ChkMIB_l.exe caused an UNKNOWN_EXCEPTION in module kernel32.dll at 7C82001B:77E4BEE7 Registers: EAX=0012F908 EBX=00000000 ECX=00000000 EDX=02410004 ESI=0012F998 EDI=0012F998 EBP=0012F958 ESP=0012F904 EIP=77E4BEE7 FLG=00000206 CS =7C82001B DS =B90023 SS =120023 ES =120023 FS =7C82003B GS =3F0000 Call Stack: 7C82001B:77E4BEE7 (0xE06D7363 0x00000001 0x00000003 0x0012F98C) kernel32.dll 7C82001B:77BB3259 (0x0012F9B8 0x2B017C50 0x2B024404 0x00B68C98) MSVCRT.dll 7C82001B:2B010C42 (0x00020003 0x010C00FE 0x003F0190 0x00B69050) PS.dll << SOFTWARE DELIVERY INSTANCE INFO >> TRIGGER 0(1) instances: JCE 0(1) instances: TM 0(1) instances: IM 0(1) instances: DM 0(1) instances: DPU 0(71) instances: NATF 0(1) instances: MIBCONV 0(0) instances: API 0(4) instances: DTSFT 0(0) instances: TNGPOP 0(0) instances: DGATE 0(0) instances: << FLUSHING MEMORY TRACES >> << STOP FLUSHING MEMORY TRACES >> I compared the configuration of the SDO service and the system configuration with another server on which the Windows Server 2003 SP2 is installed and SDO is working. The configuration is the same and the same driver and software versions are used. Do you have any idea what causes the connection issue? Should I deinstall the unicenter service and make a fresh installation on the server or should I remove the Windows Server 2003 SP2? I don't want to remove the SP2 because it's a requirement for WSUS3 SP2 and I really don't want to know how many possible exploits are possible in such an old system ;-) Thank you very much and have a nice day. Below you can find more detailed information about the system and the SDO service. psinfo output (system information) System information for \\CZZAAS1003: Uptime: 0 days 14 hours 38 minutes 50 seconds Kernel version: Microsoft Windows Server 2003, Multiprocessor Free Product type: Standard Edition Product version: 5.2 Service pack: 2 Kernel build number: 3790 Install date: 23.9.2004, 11:16:11s IE version: 6.0000 System root: C:\WINDOWS Processors: 2 Processor speed: 2.3 GHz Processor type: Intel(R) Xeon(TM) CPU Physical memory: 1024 MB Video driver: RAGE XL PCI Family (Microsoft Corporation) sdver output (Unicenter Software delivery version) Unicenter Software Delivery 4.0 SP1 I2 ENU [2901] Copyright 2004 Computer Associates International, Incorporated ms sql 2000 version and odbc driver version MS SQL 2000 Server Standard Edition Product Version: 8.00.760 (SP3) ODBC Driver: SQL Server - Version 2000.86.3959.00 complete Unicenter Software delivery service log file TRIGGER[1] 27/05 10:38:28,366 SD Trigger Agent has started NATF[1] 27/05 10:38:28,928 Initiation phase finished IM[1] 27/05 10:38:31,272 Installation Manager in init phase IM[1] 27/05 10:38:31,694 Process IM(L) - [004152] failed to open database SDDATA. dbopen() call failed. IM[1] 27/05 10:38:31,694 sqls error details: IM[1] 27/05 10:38:31,694 (null) IM[1] 27/05 10:38:32,069 ##EXCEPTION## TableError T@:PS_SQLS\isam_db.cxx:744. IM[1] 27/05 10:38:32,069 ##EXCEPTION## TableError C@:TaskmgrL\ASMTML.CXX:596. IM[1] 27/05 10:38:32,069 ##EXCEPTION## ErrorCode: 4711 in SDDATA:Isam::Isam. Process IM(L) - [004152] failed to open database SDDATA. dbopen() call failed. IM[1] 27/05 10:38:32,069 sqls error details: IM[1] 27/05 10:38:32,069 (null) IM[1] 27/05 10:38:32,069 returned 0. IM[1] 27/05 10:38:32,084 Persistent Storage could not be opened. Error cause is found in the ASM Event Log. Restart Task Manager. IM[1] 27/05 10:38:32,084 Failed to open database. IM[1] 27/05 10:38:32,084 Installation Manager ends TM[1] 27/05 10:38:32,116 Task Manager in init phase TM[1] 27/05 10:38:32,334 Process TM(L) - [006132] failed to open database SDDATA. dbopen() call failed. TM[1] 27/05 10:38:32,334 sqls error details: TM[1] 27/05 10:38:32,334 (null) TM[1] 27/05 10:38:32,381 ##EXCEPTION## TableError T@:PS_SQLS\isam_db.cxx:744. TM[1] 27/05 10:38:32,381 ##EXCEPTION## TableError C@:TaskmgrL\ASMTML.CXX:596. TM[1] 27/05 10:38:32,381 ##EXCEPTION## ErrorCode: 4711 in SDDATA:Isam::Isam. Process TM(L) - [006132] failed to open database SDDATA. dbopen() call failed. TM[1] 27/05 10:38:32,381 sqls error details: TM[1] 27/05 10:38:32,381 (null) TM[1] 27/05 10:38:32,381 returned 0. TM[1] 27/05 10:38:32,381 Persistent Storage could not be opened. Error cause is found in the ASM Event Log. Restart Task Manager. TM[1] 27/05 10:38:32,381 Failed to open database. TM[1] 27/05 10:38:32,381 Task Manager ends DM[1] 27/05 10:38:33,272 Dialogue Manager is now active API[1] 27/05 10:38:34,397 API Server Process in init phase API[1] 27/05 10:38:34,397 API - SDNLS_Init API[1] 27/05 10:38:34,397 API - connectEM API[1] 27/05 10:38:34,412 API - apiServ.init DM[1] 27/05 10:38:34,678 **AND** 1 Agents triggered API[1] 27/05 10:38:34,709 Process API(L) - [005680] failed to open database SDDATA. dbopen() call failed. API[1] 27/05 10:38:34,709 sqls error details: API[1] 27/05 10:38:34,709 (null) API[1] 27/05 10:38:34,756 ##EXCEPTION## TableError T@:PS_SQLS\isam_db.cxx:744. API[1] 27/05 10:38:34,756 ##EXCEPTION## TableError C@:MainAPIL\APISERVL.CXX:246. API[1] 27/05 10:38:34,756 ##EXCEPTION## ErrorCode: 4711 in SDDATA:Isam::Isam. Process API(L) - [005680] failed to open database SDDATA. dbopen() call failed. API[1] 27/05 10:38:34,756 sqls error details: API[1] 27/05 10:38:34,756 (null) API[1] 27/05 10:38:34,756 returned 0. API[1] 27/05 10:38:34,756 Open of the database failed. API[1] 27/05 10:38:34,756 API - apiServ.init complete API[1] 27/05 10:38:34,756 API - start_APIServer DM[1] 27/05 10:38:34,803 CZZAAR1037 DPU[1:CZZAAR1037] 27/05 10:38:35,772 DPU in init phase DPU[1:CZZAAR1037] 27/05 10:38:36,100 >> GetManagerData DPU[1:CZZAAR1037] 27/05 10:38:36,287 >> SetCompInfo DPU[1:CZZAAR1037] 27/05 10:38:36,334 >> GetContainerList DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6ad DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6ad DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6b7 DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6b7 DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6c1 DPU[1:CZZAAR1037] 27/05 10:38:36,350 getJobState 3 from 5b6c1 DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b6cb DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b6cb DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b6f9 DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b6f9 DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b71a DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b71a DPU[1:CZZAAR1037] 27/05 10:38:36,366 getJobState 3 from 5b724 DPU[1:CZZAAR1037] 27/05 10:38:36,381 getJobState 3 from 5b724 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b72e DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b72e DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b738 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b738 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b742 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b742 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b74c DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b74c DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b756 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b756 DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b78a DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b78a DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b7af DPU[1:CZZAAR1037] 27/05 10:38:36,397 getJobState 3 from 5b7af DPU[1:CZZAAR1037] 27/05 10:38:36,522 >> SetCompAttr DPU[1:CZZAAR1037] 27/05 10:38:36,569 >> SetDetected DPU[1:CZZAAR1037] 27/05 10:38:36,584 disconnect DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b6ad DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b6b7 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b6c1 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b6cb DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b6f9 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b71a DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b724 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b72e DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b738 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b742 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b74c DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b756 DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b78a DPU[1:CZZAAR1037] 27/05 10:38:36,584 getJobState 3 from 5b7af DPU[1:CZZAAR1037] 27/05 10:38:36,584 DPU ends DM[1] 27/05 10:38:38,006 **AND** 0 Agents triggered JCE[1] 27/05 10:38:38,053 JCE starts DM[1] 27/05 10:38:38,287 CZZAAS1003 DPU[2:CZZAAS1003] 27/05 10:38:38,412 DPU in init phase DPU[2:CZZAAS1003] 27/05 10:38:38,647 >> GetManagerData DPU[2:CZZAAS1003] 27/05 10:38:38,756 >> SetCompInfo DPU[2:CZZAAS1003] 27/05 10:38:38,787 >> GetContainerList DM[1] 27/05 10:38:38,850 **AND** 1 Agents triggered DM[1] 27/05 10:38:38,928 CZZAAR1124 DPU[3:CZZAAR1124] 27/05 10:38:39,053 DPU in init phase DPU[3:CZZAAR1124] 27/05 10:38:39,272 >> GetManagerData DM[1] 27/05 10:38:39,334 **AND** 1 Agents triggered DPU[3:CZZAAR1124] 27/05 10:38:39,381 >> SetCompInfo DPU[3:CZZAAR1124] 27/05 10:38:39,412 >> GetContainerList DM[1] 27/05 10:38:39,412 CZZAAR1125 DPU[3:CZZAAR1124] 27/05 10:38:39,428 getJobState 3 from 5b88e DPU[3:CZZAAR1124] 27/05 10:38:39,428 getJobState 3 from 5b88e DPU[2:CZZAAS1003] 27/05 10:38:39,491 >> SetCompAttr DPU[3:CZZAAR1124] 27/05 10:38:39,522 >> SetCompAttr DPU[4:CZZAAR1125] 27/05 10:38:39,522 DPU in init phase DPU[3:CZZAAR1124] 27/05 10:38:39,584 >> SetDetected DPU[2:CZZAAS1003] 27/05 10:38:39,584 >> SetDetected DPU[3:CZZAAR1124] 27/05 10:38:39,584 disconnect DPU[3:CZZAAR1124] 27/05 10:38:39,600 getJobState 3 from 5b88e DPU[3:CZZAAR1124] 27/05 10:38:39,600 DPU ends DPU[2:CZZAAS1003] 27/05 10:38:39,631 disconnect DPU[2:CZZAAS1003] 27/05 10:38:39,631 DPU ends DPU[4:CZZAAR1125] 27/05 10:38:39,756 >> GetManagerData DPU[4:CZZAAR1125] 27/05 10:38:39,850 >> SetCompInfo DPU[4:CZZAAR1125] 27/05 10:38:39,881 >> GetContainerList DPU[4:CZZAAR1125] 27/05 10:38:39,897 getJobState 3 from 5b8a9 DPU[4:CZZAAR1125] 27/05 10:38:39,897 getJobState 3 from 5b8a9 DPU[4:CZZAAR1125] 27/05 10:38:39,991 >> SetCompAttr DPU[4:CZZAAR1125] 27/05 10:38:40,100 >> SetDetected DPU[4:CZZAAR1125] 27/05 10:38:40,116 disconnect DPU[4:CZZAAR1125] 27/05 10:38:40,116 getJobState 3 from 5b8a9 DPU[4:CZZAAR1125] 27/05 10:38:40,116 DPU ends DM[1] 27/05 10:38:40,741 **AND** 0 Agents triggered JCE[1] 27/05 10:38:42,756 JCE ends DM[1] 27/05 10:38:47,475 **AND** 0 Agents triggered DM[1] 27/05 10:38:54,241 **AND** 0 Agents triggered

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• Finding a shared HDD attached to the network from my F-13 machine

  - by Ramy

  Sorry for the slew of n00bie questions, but here is one more. I recently partitioned my 1.5TB harddrive according to this question I then bought this to attach the harddrive to my network. The problem is, how do I navigate to the hard drive to move files over the network to the HDD. should this be moved to serverfault? update: the disk isn't even showing up when i call "fdisk -l" (as root). How can I mount it if I can't even find it? [root@Moonface ~]# /sbin/fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00018598 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 19458 155777024 8e Linux LVM Disk /dev/dm-0: 53.7 GB, 53687091200 bytes 255 heads, 63 sectors/track, 6527 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-0 doesn't contain a valid partition table Disk /dev/dm-1: 4764 MB, 4764729344 bytes 255 heads, 63 sectors/track, 579 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1 doesn't contain a valid partition table Disk /dev/dm-2: 101.0 GB, 101032394752 bytes 255 heads, 63 sectors/track, 12283 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-2 doesn't contain a valid partition table

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• "Can't find root filesystem / error mounting /dev/root" when booting to new kernel

  - by salparadise

  I am trying to upgrade my kernel from 2.6.18-274 to 2.6.39 for some wireless card drivers. When I boot into the new kernel I get the "Can't find root filesystem / error mounting /dev/root" googling led me to this page http://fedoraproject.org/wiki/Common_kernel_problems#Can.27t_find_root_filesystem_.2F_error_mounting_.2Fdev.2Froot From what I am reading seems to be an issue with a driver for my SATA controller or HD, but I can't find what option I need to add to the kernel. Doing a diff from the old initrd to the new one gives me the following: root-> diff /tmp/kafter /tmp/kbefore 6a7,8 > lib/dm-message.ko > lib/dm-region_hash.ko 8a11 > lib/dm-raid45.ko 13d15 < lib/dm-region-hash.ko 16a19 > lib/dm-mem-cache.ko Do I need any of those? not sure if I would need dm-raid45.ko as I am not running a raid. I have the same SATA and IDE options configured for both kernels so not sure what else to look for, any help is appreciated. Additionally here is the HW info: 00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03) (prog-if 8f [Master SecP SecO PriP PriO]) Subsystem: Hewlett-Packard Company Unknown device 3006 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 233 I/O ports at 1818 [size=8] I/O ports at 1830 [size=4] I/O ports at 1820 [size=8] I/O ports at 1834 [size=4] I/O ports at 14f0 [size=16] Capabilities: [70] Power Management version 2 root-> smartctl -a /dev/sda ... === START OF INFORMATION SECTION === Device Model: WDC WD5000AADS-00S9B0

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• How to put Listview items into String Array?

  - by user2851687

  Im developing an app and as the title says how to put items of listview into String array, not string array to listview but listview to string array. I've been searching for this but what I only found is putting String array items into listview. Please help me thank you in advance. To clarify this thread, the question is how to put listview items into String array. Thanks. :D Codes public class DailyPlanTab extends Activity implements OnItemClickListener { ListView dailyPlanList; ArrayList<DailyManager> taskList = new ArrayList<DailyManager>(); DatabaseDailyPlan db; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.dailyplan_layout); dailyPlanList = (ListView) findViewById(R.id.lvDailyPlanList); dailyPlanList.setOnItemClickListener(this); ImageView add = (ImageView) findViewById(R.id.ivDailyPlanAdd); add.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent newDailyIntent = new Intent(getApplicationContext(), NewDailyPlan.class); startActivity(newDailyIntent); } }); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); taskList.clear(); db = new DatabaseDailyPlan(getApplicationContext()); db.getWritableDatabase(); ArrayList<DailyManager> tempList = db.getTask(); for (int i = 0; i < tempList.size(); i++) { String getTask = tempList.get(i).getDaily_name(); String getDate = tempList.get(i).getDaily_date(); int getId = tempList.get(i).getDaily_id(); DailyManager dm = new DailyManager(); dm.setDaily_name(getTask); dm.setDaily_date(getDate); dm.setDaily_id(getId); taskList.add(dm); } dailyPlanList.setAdapter(new ListAdapter(this)); // db.close(); } public class ListAdapter extends BaseAdapter { LayoutInflater inflater; ViewHolder viewHolder; public ListAdapter(Context c) { // TODO Auto-generated constructor stub inflater = LayoutInflater.from(c); } @Override public int getCount() { // TODO Auto-generated method stub return taskList.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return position; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub if (convertView == null) { convertView = inflater.inflate(R.layout.row_checklist_item, null); viewHolder = new ViewHolder(); viewHolder.taskTitle = (TextView) convertView .findViewById(R.id.tvCheckListItem); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } viewHolder.taskTitle.setText("" + taskList.get(position).getDaily_name()); return convertView; } } public class ViewHolder { TextView taskTitle, taskDate; } @Override public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) { // TODO Auto-generated method stub int taskId = taskList.get(position).getDaily_id(); String taskName = taskList.get(position).getDaily_name(); String taskDate = taskList.get(position).getDaily_date(); Intent newPlan = new Intent(getApplicationContext(), DailyPlan.class); newPlan.putExtra("task_id", taskId); newPlan.putExtra("task_name", taskName); startActivity(newPlan); } next is the information of the item inside the listview public class DailyPlan extends Activity implements OnItemClickListener { final ArrayList<DailyManager> savedItems = new ArrayList<DailyManager>(); ListView checkList; Boolean nextItem = false; TempManager tm; DatabaseTemp dbTemp; Intent i; int taskId = -1; String taskName = " ", taskDate = null; DatabaseDailyPlan db; DailyManager dm; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.saved_dailyplan); checkList = (ListView) findViewById(R.id.lvCheckList); // checkList.setOnItemClickListener(this); try { i = getIntent(); taskId = i.getExtras().getInt("task_id"); taskName = i.getExtras().getString("task_name"); Toast.makeText(getApplicationContext(), "From new id is" + taskId, 5000).show(); } catch (Exception e) { } Button addList = (Button) findViewById(R.id.bAddList); addList.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub // openDialog("", false, -1); } }); if (nextItem) { // openDialog("", false, -1); } } public void refresh() { DailyPlan.this.onResume(); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); savedItems.clear(); dbTemp = new DatabaseTemp(getApplicationContext()); dbTemp.getWritableDatabase(); db = new DatabaseDailyPlan(getApplicationContext()); db.getWritableDatabase(); if (taskId != -1) { // / For Load ArrayList<DailyManager> savedList = db.getList(taskId); for (int i = 0; i < savedList.size(); i++) { String savedListItems = savedList.get(i).getDaily_list(); String savedListTitle = savedList.get(i).getDaily_name(); String savedListDate = savedList.get(i).getDaily_date(); int savedListId = savedList.get(i).getDaily_id(); DailyManager dm = new DailyManager(); dm.setDaily_list(savedListItems); dm.setDaily_name(savedListTitle); dm.setDaily_date(savedListDate); dm.setDaily_id(savedListId); savedItems.add(dm); } } else { // / For New } checkList.setAdapter(new ListAdapter(this)); } public class ListAdapter extends BaseAdapter { LayoutInflater inflater; ViewHolder viewHolder; public ListAdapter(Context c) { // TODO Auto-generated constructor stub inflater = LayoutInflater.from(c); } @Override public int getCount() { // TODO Auto-generated method stub return savedItems.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return position; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub if (convertView == null) { convertView = inflater.inflate(R.layout.row_checklist_item, null); viewHolder = new ViewHolder(); viewHolder.checkListItem = (TextView) convertView .findViewById(R.id.tvCheckListItem); convertView.setTag(viewHolder); } else { viewHolder = (ViewHolder) convertView.getTag(); } viewHolder.checkListItem.setText(savedItems.get(position) .getDaily_list() + position); final int temp = position; return convertView; } } private class ViewHolder { TextView checkListItem; } @Override public void onItemClick(AdapterView<?> arg0, View arg1, int item, long arg3) { // TODO Auto-generated method stub // openDialog(savedItems.get(item).getDaily_name(), true, // savedItems.get(item).getDaily_id()); } }

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• Determining cause of high NFS/IO utilization without iotop

  - by Matt

  I have a server that is doing an NFSv4 export for user's home directories. There are roughly 25 users (mostly developers/analysts) and about 40 servers mounting the home directory export. Performance is miserable, with users often seeing multi-second lags for simple commands (like ls, or writing a small text file). Sometimes the home directory mount completely hangs for minutes, with users getting "permission denied" errors. The hardware is a Dell R510 with dual E5620 CPUs and 8 GB RAM. There are eight 15k 2.5” 600 GB drives (Seagate ST3600057SS) configured in hardware RAID-6 with a single hot spare. RAID controller is a Dell PERC H700 w/512MB cache (Linux sees this as a LSI MegaSAS 9260). OS is CentOS 5.6, home directory partition is ext3, with options “rw,data=journal,usrquota”. I have the HW RAID configured to present two virtual disks to the OS: /dev/sda for the OS (boot, root and swap partitions), and /dev/sdb for the home directories. What I find curious, and suspicious, is that the sda device often has very high utilization, even though it only contains the OS. I would expect this virtual drive to be idle almost all the time. The system is not swapping, according to "free" and "vmstat". Why would there be major load on this device? Here is a 30-second snapshot from iostat: Time: 09:37:28 AM Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0.00 44.09 0.03 107.76 0.13 607.40 11.27 0.89 8.27 7.27 78.35 sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sda2 0.00 44.09 0.03 107.76 0.13 607.40 11.27 0.89 8.27 7.27 78.35 sdb 0.00 2616.53 0.67 157.88 2.80 11098.83 140.04 8.57 54.08 4.21 66.68 sdb1 0.00 2616.53 0.67 157.88 2.80 11098.83 140.04 8.57 54.08 4.21 66.68 dm-0 0.00 0.00 0.03 151.82 0.13 607.26 8.00 1.25 8.23 5.16 78.35 dm-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 dm-2 0.00 0.00 0.67 2774.84 2.80 11099.37 8.00 474.30 170.89 0.24 66.84 dm-3 0.00 0.00 0.67 2774.84 2.80 11099.37 8.00 474.30 170.89 0.24 66.84 Looks like iotop is the ideal tool to use to sniff out these kinds of issues. But I'm on CentOS 5.6, which doesn't have a new enough kernel to support that program. I looked at Determining which process is causing heavy disk I/O?, and besides iotop, one of the suggestions said to do a "echo 1 /proc/sys/vm/block_dump". I did that (after directing kernel messages to tempfs). In about 13 minutes I had about 700k reads or writes, roughly half from kjournald and the other half from nfsd: # egrep " kernel: .*(READ|WRITE)" messages | wc -l 768439 # egrep " kernel: kjournald.*(READ|WRITE)" messages | wc -l 403615 # egrep " kernel: nfsd.*(READ|WRITE)" messages | wc -l 314028 For what it's worth, for the last hour, utilization has constantly been over 90% for the home directory drive. My 30-second iostat keeps showing output like this: Time: 09:36:30 PM Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0.00 6.46 0.20 11.33 0.80 71.71 12.58 0.24 20.53 14.37 16.56 sda1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 sda2 0.00 6.46 0.20 11.33 0.80 71.71 12.58 0.24 20.53 14.37 16.56 sdb 137.29 7.00 549.92 3.80 22817.19 43.19 82.57 3.02 5.45 1.74 96.32 sdb1 137.29 7.00 549.92 3.80 22817.19 43.19 82.57 3.02 5.45 1.74 96.32 dm-0 0.00 0.00 0.20 17.76 0.80 71.04 8.00 0.38 21.21 9.22 16.57 dm-1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 dm-2 0.00 0.00 687.47 10.80 22817.19 43.19 65.48 4.62 6.61 1.43 99.81 dm-3 0.00 0.00 687.47 10.80 22817.19 43.19 65.48 4.62 6.61 1.43 99.82

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• How can I track down the cause of ext3 filesystem corruption?

  - by Jon Buys

  We have a VMware vSphere 5 environment running CentOS 5.8 virtual machines. In the past two weeks we have had five incidents of virtual machines having a filesytem become corrupt, requiring an fsck to repair. Here is what we see in the logs: Nov 14 14:39:28 hostname kernel: EXT3-fs error (device dm-2): htree_dirblock_to_tree: bad entry in directory #2392098: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0 Nov 14 14:39:28 hostname kernel: Aborting journal on device dm-2. Nov 14 14:39:28 hostname kernel: __journal_remove_journal_head: freeing b_committed_data Nov 14 14:39:28 hostname last message repeated 4 times Nov 14 14:39:28 hostname kernel: ext3_abort called. Nov 14 14:39:28 hostname kernel: EXT3-fs error (device dm-2): ext3_journal_start_sb: Detected aborted journal Nov 14 14:39:28 hostname kernel: Remounting filesystem read-only Nov 14 14:39:28 hostname kernel: EXT3-fs error (device dm-2): htree_dirblock_to_tree: bad entry in directory #2392099: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0 Nov 14 14:31:17 hostname ntpd[3041]: synchronized to 194.238.48.2, stratum 2 Nov 14 15:00:40 hostname kernel: EXT3-fs error (device dm-2): htree_dirblock_to_tree: bad entry in directory #2162743: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0 Nov 14 15:13:17 hostname kernel: __journal_remove_journal_head: freeing b_committed_data The problem seems to happen while we are rsync'ing application data from another server. So far we have been unable to reproduce the problem, or identify a root cause. After we had a few servers have this problem, we assumed that there was an issue with the template, so we scrapped all VM's cloned off of the template, destroyed the template, and built a new template from scratch, installed from a newly downloaded CentOS ISO. We use HP EVA SAN's for datastores, and moved from a 4400 to a 6300 after the first problem. Since the move and rebuilding new virtual machines we have seen the issue twice. On one VM we shut down the server, removed two virtual CPUs, and booted it back up again, the problem presented itself almost immediately. On the other VM, we rebooted it, and the problem happened a half hour later. Any tips or pointers in the right direction would be appreciated.

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• Adding third disk as a single disk in a server with an existing RAID1

  - by slowhandsolo

  I've got a ProLiant DL360 G5 server (Fedora 13) with two SAS disks in a hardware RAID 1, working fine. Now I hot plugged another SAS disk. I'd like to configure this new hard disk out of my RAID, as a single non-RAID disk (ex. /dev/sdb). Even after rebooting the server, I can't see the new disk with "fdisk -l". It displays only my hardware RAID, but not the new disk. [root@myserver]# fdisk -l Disco /dev/cciss/c0d0: 300.0 GB, 299966445568 bytes Disposit. Inicio Comienzo Fin Bloques Id Sistema /dev/cciss/c0d0p1 * 1 126 512000 83 Linux /dev/cciss/c0d0p2 126 71798 292422656 8e Linux LVM Disco /dev/dm-0: 234.9 GB, 234881024000 bytes Disco /dev/dm-1: 10.5 GB, 10536091648 bytes Disco /dev/dm-2: 21.0 GB, 20971520000 bytes Disco /dev/dm-3: 31.5 GB, 31474057216 bytes Disco /dev/dm-4: 1577 MB, 1577058304 bytes However, I can see the new disk using the HP Array Configuration Utility CLI for Linux "hpacucli": [root@myserver]# hpacucli => controller slot=0 physicaldrive all show status physicaldrive 1I:1:1 (port 1I:box 1:bay 1, 300 GB): OK physicaldrive 1I:1:2 (port 1I:box 1:bay 2, 300 GB): OK physicaldrive 1I:1:3 (port 1I:box 1:bay 3, 300 GB): OK => controller slot=0 pd all show detail Smart Array P400i in Slot 0 (Embedded) array A physicaldrive 1I:1:1 Port: 1I Box: 1 Bay: 1 physicaldrive 1I:1:2 Port: 1I Box: 1 Bay: 2 **unassigned** physicaldrive 1I:1:3 Port: 1I Box: 1 Bay: 3 Status: OK Drive Type: **Unassigned Drive** As you can see, I've got two SAS disks in a RAID 1 and the new disk as "unassigned". Is there any way to work with the new disk as another non-RAID single disk? If relevant, I want to create a new partition in my new disk, format it with mkfs and mount it, but as I can't see it with fdisk, I don't know how to do it. Thanks!

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• SDcard /dev/sdb2 is apparently in use by the system; will not make a filesystem here

  - by user171223

  I divided my sdcard into 2 partitions, but It got an error and couldn't create a new partition. Error: /dev/sdb2 is apparently in use by the system; will not make a filesystem here! My /dev/sdb was not mounted, and the output of command lsblk was: cxphong@cxphong:~/Desktop$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sr0 11:0 1 1024M 0 rom sda 8:0 0 465.8G 0 disk +-sda1 8:1 0 118.8G 0 part +-sda2 8:2 0 147.7G 0 part /media/DATA +-sda3 8:3 0 137.1G 0 part +-sda4 8:4 0 1K 0 part +-sda5 8:5 0 1023M 0 part [SWAP] +-sda6 8:6 0 61.2G 0 part / sdb 8:16 1 3.7G 0 disk +-sdb1 8:17 1 70.6M 0 part +-sdb2 8:18 1 3.6G 0 part +-sdb1 (dm-0) 252:0 0 70.6M 0 part +-sdb2 (dm-1) 252:1 0 3.6G 0 part I couldn't delete /dev/sdb1 (dm-0) & /dev/sdb2 (dm-1). What are they?

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• Can I install fresh Linux accross partitions (LUKS & LVM) and preserve/use existing home user?

  - by xtian

  With an existing LUKS encrypted logical volume partitioned hard disk dual boot to Windoz and Linux (Fedora 15), is it necessary to "start over" with the LUKS setup when upgrading the system? I recall some note about dividing the Linux installation over different partitions would help to preserve the home data in future update (I can't find this now) Before I try it, is this possible and intended use case for partitioning a Linux installation? # lsblk -fa NAME FSTYPE LABEL MOUNTPOINT sda [80G] +-sda1 [system W95 FAT 32] vfat +-sda2 ext4 /boot +-sda3 [52.4G] crypto_LUKS +-luks-de25ac97-6a32-4b79-a6a0-296a39376b3b (dm-0) LVM2_member +-cryptVG-root (dm-1) [21.5G] ext4 / +-cryptVG-swap (dm-2) [5.4MB] swap [SWAP] +-cryptVG-data (dm-3) [25.6G] ext4 /home

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• disk space worngly displayed after installing LVM disk

  - by Ubuntuser

  I installed ubuntu server using LVM partitioning on a 1 TB hard disk. However, after installation, i can only see 10 Gig space here is the fidsk output ` # fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00041507 Device Boot Start End Blocks Id System /dev/sda1 * 1 10 71680 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 10 121602 976689152 8e Linux LVM Disk /dev/dm-0: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-0 doesn't contain a valid partition table Disk /dev/dm-1: 2147 MB, 2147483648 bytes 255 heads, 63 sectors/track, 261 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1 doesn't contain a valid partition table You have new mail in /var/mail/root and df -h output df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/system-root 9.9G 6.6G 2.8G 71% / devtmpfs 1.9G 232K 1.9G 1% /dev tmpfs 1.9G 4.0K 1.9G 1% /dev/shm /dev/sda1 68M 22M 43M 34% /boot tmpfs 6.0G 0 6.0G 0% /var/spool/asterisk/monitor You have new mail in /var/mail/root ` any way to increase this space without reisntalling?

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• How to hide bind mounts in nautilus?

  - by Bazon

  Summary: How do I remove folders mounted via bind or bindfs in /etc/fstab from appearing as devices in nautilus left column, the "places" view? detailed: Hello, I mount various directories from my data partition via bind in /etc/fstab in my home directory, eg like this: #using bind: /mnt/sda5/bazon/Musik /home/Bazon/Musik none bind,user 0 0 #or using bindfs bindfs#/mnt/sda5/tobi/Downloads /home/tobi/Downloads fuse user 0 0 (Background: /dev/sda5 mounted to /mnt/sda5 is my old home partition, but I do not want to mount it as a home partition, as I always have at least 2 Linuxes on the computer ...) That works well, but since 12.10 every one of those items is listed in Nautilus in the left column under "Devices". (Where normally USB drives appear, etc.) This is a waste of space (as I have many of such mounts...) and so I would like to have these mounts hidden, just as it was before in 12.04. How can I do that? Thanks!

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• 12.10: How to hide bind mounts in nautilus?

  - by Bazon

  Summary: How do I remove folders mounted via bind or bindfs in /etc/fstab from appearing as devices in nautilus left column, the "places" view? detailed: Hello, I mount various directories from my data partition via bind in /etc/fstab in my home directory, eg like this: #using bind: /mnt/sda5/bazon/Musik /home/Bazon/Musik none bind,user 0 0 #or using bindfs bindfs#/mnt/sda5/tobi/Downloads /home/tobi/Downloads fuse user 0 0 (Background: /dev/sda5 mounted to /mnt/sda5 is my old home partition, but I do not want to mount it as a home partition, as I always have at least 2 Linuxes on the computer ...) That works well, but since 12.10 every one of those items is listed in Nautilus in the left column under "Devices". (Where normally USB drives appear, etc.) This is a waste of space (as I have many of such mounts...) and so I would like to have these mounts hidden, just as it was before in 12.04. How can I do that? Thanks!

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• Failure connecting to Dell MD3200i from XenServer 6.2 pool

  - by Tom Sparrow

  This question also asked at Citrix Forums http://forums.citrix.com/thread.jspa?threadID=332289 I have a MD3200i that is currently working fine with my Xen5.6 pool, but I cannot get a connection to the new 6.2 pool to work. I previously had a problem with a 6.0 upgrade (which is why the old pool is still on 5.6), but rolled back rather than fix it as it wasn't urgent at the time. This install is on new machines - I tried 6.1 first (which had the same problems) then 6.2 was released the second day after installation so I switched to that. I've not installed anything from the Dell resource DVD at this point - I can't find anything saying I should, and everything I have read suggests it shouldn't be necessary. I can ping all 8 ip addresses from both servers in the pool, iscsiadm -m discovery works fine, I can login to the nodes and iscsiadm reports the sessions active correctly. I've added the required sections to multipath.conf, but multipath -ll reports DM multipath kernel driver not loaded immediately after boot. The following is a log of a test session immediately after boot. root@xen3 ~]# iscsiadm -m node --loginall=all Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.101,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.101,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.104,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.102,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.103,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.104,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.102,3260] Logging in to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.103,3260] Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.101,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.101,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.104,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.102,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.103,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.104,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.130.102,3260]: successful Login to [iface: default, target: iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91, portal: 192.168.131.103,3260]: successful [root@xen3 ~]# iscsiadm -m session tcp: [1] 192.168.130.101:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [2] 192.168.131.101:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [3] 192.168.131.104:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [4] 192.168.131.102:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [5] 192.168.130.103:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [6] 192.168.130.104:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [7] 192.168.130.102:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [8] 192.168.131.103:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 [root@xen3 ~]# service multipathd restart ok Stopping multipathd daemon: [ OK ] Starting multipathd daemon: [ OK ] [root@xen3 ~]# multipath Jul 04 09:58:47 | DM multipath kernel driver not loaded Jul 04 09:58:47 | DM multipath kernel driver not loaded [root@xen3 ~]# multipath -ll Jul 04 09:59:03 | DM multipath kernel driver not loaded Jul 04 09:59:03 | DM multipath kernel driver not loaded [ root@xen3 ~]# modprobe dm_multipath [root@xen3 ~]# multipath Jul 04 10:19:50 | 36b8ca3a0e7024800194a0bd11891cd14: ignoring map create: 1Dell_Internal_Dual_SD_0123456789AB undef Dell,Internal Dual SD size=1.9G features='0' hwhandler='0' wp=undef `-+- policy='round-robin 0' prio=1 status=undef `- 7:0:0:0 sdb 8:16 undef ready running [root@xen3 ~]# multipath -ll 1Dell_Internal_Dual_SD_0123456789AB dm-1 Dell,Internal Dual SD size=1.9G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=enabled `- 7:0:0:0 sdb 8:16 active ready running [root@xen3 ~]# iscsiadm -m session tcp: [1] 192.168.130.101:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [2] 192.168.131.101:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [3] 192.168.131.104:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [4] 192.168.131.102:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [5] 192.168.130.103:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [6] 192.168.130.104:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [7] 192.168.130.102:3260,2 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 tcp: [8] 192.168.131.103:3260,1 iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 [root@xen3 ~]# dmesg | tail -n 50 [ 1161.881010] sd 8:0:0:0: [sdf] Unhandled error code [ 1161.881013] sd 8:0:0:0: [sdf] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1161.881017] sd 8:0:0:0: [sdf] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1161.881024] end_request: I/O error, dev sdf, sector 0 [ 1161.881031] Buffer I/O error on device sdf, logical block 0 [ 1161.881045] sd 15:0:0:0: [sdi] Unhandled error code [ 1161.881048] sd 15:0:0:0: [sdi] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1161.881052] sd 15:0:0:0: [sdi] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1161.881058] end_request: I/O error, dev sdi, sector 0 [ 1161.881065] Buffer I/O error on device sdi, logical block 0 [ 1161.881122] sd 9:0:0:0: [sdg] Unhandled error code [ 1161.881124] sd 9:0:0:0: [sdg] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1161.881126] sd 9:0:0:0: [sdg] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1161.881132] end_request: I/O error, dev sdg, sector 0 [ 1161.881140] Buffer I/O error on device sdg, logical block 0 [ 1168.220951] connection6:0: ping timeout of 15 secs expired, recv timeout 10, last rx 84060, last ping 85060, now 86560 [ 1168.220957] connection7:0: ping timeout of 15 secs expired, recv timeout 10, last rx 84060, last ping 85060, now 86560 [ 1168.220967] connection7:0: detected conn error (1011) [ 1168.220969] connection4:0: ping timeout of 15 secs expired, recv timeout 10, last rx 84060, last ping 85060, now 86560 [ 1168.220973] connection4:0: detected conn error (1011) [ 1168.220975] connection3:0: ping timeout of 15 secs expired, recv timeout 10, last rx 84060, last ping 85060, now 86560 [ 1168.220978] connection3:0: detected conn error (1011) [ 1168.220985] connection6:0: detected conn error (1011) [ 1168.480994] sd 14:0:0:0: [sde] Unhandled error code [ 1168.480998] sd 14:0:0:0: [sde] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1168.481001] sd 14:0:0:0: [sde] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1168.481009] end_request: I/O error, dev sde, sector 0 [ 1168.481015] Buffer I/O error on device sde, logical block 0 [ 1168.481076] sd 11:0:0:0: [sdc] Unhandled error code [ 1168.481078] sd 11:0:0:0: [sdc] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1168.481080] sd 11:0:0:0: [sdc] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1168.481087] end_request: I/O error, dev sdc, sector 0 [ 1168.481092] Buffer I/O error on device sdc, logical block 0 [ 1168.481144] sd 10:0:0:0: [sdd] Unhandled error code [ 1168.481147] sd 10:0:0:0: [sdd] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1168.481150] sd 10:0:0:0: [sdd] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1168.481156] end_request: I/O error, dev sdd, sector 0 [ 1168.481163] Buffer I/O error on device sdd, logical block 0 [ 1168.481168] sd 13:0:0:0: [sdj] Unhandled error code [ 1168.481170] sd 13:0:0:0: [sdj] Result: hostbyte=DID_TRANSPORT_DISRUPTED driverbyte=DRIVER_OK [ 1168.481172] sd 13:0:0:0: [sdj] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 1168.481178] end_request: I/O error, dev sdj, sector 0 [ 1168.481184] Buffer I/O error on device sdj, logical block 0 [ 1457.105996] device-mapper: multipath round-robin: version 1.0.0 loaded [ 1457.106155] device-mapper: multipath: Cannot access device path 8:0: -16 [ 1457.106164] device-mapper: table: 252:1: multipath: error getting device [ 1457.106172] device-mapper: ioctl: error adding target to table [ 1457.171292] device-mapper: multipath: Cannot access device path 8:0: -16 [ 1457.171299] device-mapper: table: 252:1: multipath: error getting device [ 1457.171304] device-mapper: ioctl: error adding target to table [root@xen3 ~]# fdisk -l Disk /dev/sda: 299.4 GB, 299439751168 bytes 255 heads, 63 sectors/track, 36404 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 5 40131 de Dell Utility /dev/sda2 * 6 528 4194304 83 Linux Partition 2 does not end on cylinder boundary. /dev/sda3 528 1050 4194304 83 Linux /dev/sda4 1050 36404 283986359+ 8e Linux LVM Disk /dev/sdb: 2040 MB, 2040528896 bytes 255 heads, 63 sectors/track, 248 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 248 1992028+ 83 Linux Disk /dev/dm-1: 2040 MB, 2040528896 bytes 255 heads, 63 sectors/track, 248 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/dm-1p1 1 248 1992028+ 83 Linux [root@xen3 ~]# xe sr-probe type=lvmoiscsi device-config:target=192.168.130.101 device-config:targetIQN=iqn.1984-05.com.dell:powervault.md3200i.6782bcb0006bd850000000004ed88b91 Error code: SR_BACKEND_FAILURE_107 Error parameters: , The SCSIid parameter is missing or incorrect, <?xml version="1.0" ?> <iscsi-target/> Note: the xml ends there correctly on the last line - it doesn't ever return a list of LUNs (and there is one in the group on the SAN for those servers.

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