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  • Xenserver 5.5 U2 a bit unstable with an unstable W2003 VM

    - by twistedbrain
    In the last week I had to reboot the host system twice and the second one by means of the power button. The system is a Dell PE 6950 (4 Opteron dual core, 2,8 Ghz, 16 GB RAM, 900 GB disk in a RAID 10 array composed by 4 450GB 15000 rpm disks) with XenServer 5.5 U2. We're installing it and at now there are working in production a 2003 32 bit Windows server VM with 2 GB RAM, 3 vcpu and about 200 GB disk in 4 partition (12 GB boot, 20 GB program, 80 GB user data, 80 GB other data). The first time I was compressing many Windows 2003 folders (some tens GB by means of W2003 compressed folder option) from a Windows remote console and some hours before my colleague installed Backup Exec agent that was alredy installed and that required a reboot (that was pending). The console stopped responding, it was no more possible to connect by means of remote console or by means of the console of the XenCentre, it was still possible from the network to use the shared folder of the VM and the programs on it (2 db and a GIS program), but the print server didn't work any more and I couldn't give remote reboot from other domain controller hosts. I couldn't stop the virtual machine neither from the XenCentre, neither from the command line of the host also forcing the reboot. I had to reboot the host server. Yesterday it has been worst. I installed a template of another VM, CentOS 5.3 and then, put the DVD in the drive of the host. Then, before the install and after the boot I checked for defect the DVD and the W2003 VM began to respond slowly (I was connected by means of an administration remote console) the task manager showed only mid or low load, it is, only the first of the 3 vcpu was loaded (about 70%), while the other two were about at 20% and also the disk I/O was not so heavy. Then the users were not so happy because they couldn't any more use the MS word docs on the server. I immediately stopped the check of the DVD (to do that I had to force the stop of such Centos 5.3 VM), then some users could again use their docs, but other had still problems, so I decided to reboot the VM, but it doesn't stopped, neither from XenCenter, neither from command line, neither forcing the reboot. Then I tried to reboot of the host, but it didn't worked, neither from the XenCentre, neither from the host prompt (shutdown -r now as root: it told that it was shutting down, but then it didn't did that). So I had to power off by means of the power button of the server (before I tried some Magic SyS REQ, but I saw that Xen isn't compiled with this option enabled). What could you suggest about my problem, what can I look, search and see? In the W2003 VM logs there are no errors or warning to explain what happened. Some more exciting, amusing and inspiring words of poetry (the facts happened around 11 am): \# egrep -i 'err|warning' xensource.log [20100219 10:32:05.597|debug|culo|6301 unix-RPC|VBD.plug R:c81bcda701f6|xenops] watch: watching xenstore paths: [ /xapi/0/frontend/vbd/51712/hotplug; /local/domain/0/backend/vbd/0/51712/tapdisk-error ] with timeout 1200.000000 seconds [20100219 10:32:05.597|debug|culo|6301 unix-RPC|VBD.plug R:c81bcda701f6|xenops] watch: fired on /local/domain/0/backend/vbd/0/51712/tapdisk-error [20100219 10:32:14.314|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] watch: watching xenstore paths: [ /local/domain/0/backend/vbd/0/51712/shutdown-done; /local/domain/0/error/device/vbd/51712/error ] with timeout 1200.000000 seconds [20100219 10:32:14.337|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] xenstore-rm /local/domain/0/error/backend/vbd/0 [20100219 10:32:14.337|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] xenstore-rm /local/domain/0/error/device/vbd/51712 [20100219 10:32:14.338|debug|culo|6335 unix-RPC|VBD.unplug R:9258f54578d6|xenops] watch: fired on /local/domain/0/error/device/vbd/51712/error [20100219 10:53:48.903|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|helpers] Ignoring exception: INTERNAL_ERROR: [ Xb.Noent ] while Vmops.destroy_domain: Destroying domid 14 guest session [20100219 10:53:52.048|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.048|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51744 [20100219 10:53:52.085|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.086|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51728 [20100219 10:53:52.122|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/tap/14 [20100219 10:53:52.122|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51712 [20100219 10:53:52.127|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vbd/14 [20100219 10:53:52.128|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vbd/51760 [20100219 10:53:52.496|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 10:53:52.497|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vif/14 [20100219 10:53:52.497|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vif/0 [20100219 10:53:53.385|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 10:53:53.386|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/0/error/backend/vif/14 [20100219 10:53:53.386|debug|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|xenops] xenstore-rm /local/domain/14/error/device/vif/1 [20100219 10:53:53.389| warn|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|hotplug] Warning, deleting 'vif' entry from /xapi/14/hotplug/vif/0 [20100219 10:53:53.391| warn|culo|6418|Async.VM.hard_shutdown R:88d2095678f7|hotplug] Warning, deleting 'vif' entry from /xapi/14/hotplug/vif/1 [20100219 11:20:49.766|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|helpers] Ignoring exception: INTERNAL_ERROR: [ Xb.Noent ] while Vmops.destroy_domain: Destroying domid 11 guest session [20100219 11:20:50.339|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/tap/11 [20100219 11:20:50.339|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/832 [20100219 11:20:50.360|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/tap/11 [20100219 11:20:50.360|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/768 [20100219 11:20:50.366|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/vbd/11 [20100219 11:20:50.366|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vbd/5696 [20100219 11:20:50.753|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] Device.Vif.hard_shutdown about to blow away backend and error paths [20100219 11:20:50.754|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/0/error/backend/vif/11 [20100219 11:20:50.754|debug|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|xenops] xenstore-rm /local/domain/11/error/device/vif/1 [20100219 11:20:50.757| warn|culo|6484|Async.VM.clean_shutdown R:78d3c3e28cb6|hotplug] Warning, deleting 'vif' entry from /xapi/11/hotplug/vif/1 [20100219 11:28:13.803|debug|culo|6610 inet-RPC|Connection to VM console R:e9f8b76e8975|console] error: INTERNAL_ERROR: [ Unix.Unix_error(63, "connect", "") ]

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  • Copy Office files from a Mac to a PC

    - by Martin
    A friend of me recently dumped his Mac fpr a PC. He used Microsoft Office for Mac and has several hundred Files (Word, Excel) which were copied over to the new PC using a USB disk. Microsoft Office is now unable to read any of there files. I suspect this is because of little endian vs. big endian. Is there any tool which can converted all theses files automatically, doing this by hand would take ages.

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  • Copy Office files from a Mac to a PC

    - by Martin
    A friend of me recently dumped his Mac fpr a PC. He used Microsoft Office for Mac and has several hundred Files (Word, Excel) which were copied over to the new PC using a USB disk. Microsoft Office is now unable to read any of there files. I suspect this is because of little endian vs. big endian. Is there any tool which can converted all theses files automatically, doing this by hand would take ages.

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  • iTunes: Burn an MP3 CD when I only have AAC files?

    - by Phillip Oldham
    Is there a way to burn an MP3 CD when iTunes only contains (unprotected) AAC files purchased from the iTunes store? There isn't an option directly in iTunes to convert AAC - MP3 like there is for MP3 - AAC, and having to convert the AAC files to MP3 and use an extrnal tool to burn the disk would be time-consuming. Are there any plugins for iTunes that can accomplish this? Or programs which can read an iTunes playlist, convert the tracks to MP3 "on the fly" while burning the CD?

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  • Vista home basic, "this folder is empty" problem

    - by peter m
    When I access my itunes folder in "my music" I see most but not all artist folders, when I access any of them I get "this folder is empty", When in Itunes all music plays and if I right click on a song and click show in folder I can see my full Itunes folder, so far I have done two system restores, scan disk, windows memory scan, defrag and tried ifixit. nothing has worked, I dont understand how I can see two different folders at the same address. Also have checked hidden files settings.

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  • Mysql Fail to start

    - by John Naegle
    I'm running a Ubuntu 12.04 LTS Virtual Machine. Last week, the VM stopped unexpectedly now mysql will not start on the VM. These two events may be related, they may not be. When I try to connect: $ mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) Then: $ sudo service mysql start start: Job failed to start And $ dmesg [ 1838.218400] type=1400 audit(1374633238.253:50): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=18473 comm="apparmor_parser" [ 1838.358656] init: mysql main process (18477) terminated with status 1 [ 1838.358695] init: mysql main process ended, respawning [ 1839.269303] init: mysql post-start process (18478) terminated with status 1 And $ service mysql status mysql stop/waiting I think this means mysql is crashing when it starts: $ sudo mysqld start 130723 21:51:24 InnoDB: Assertion failure in thread 3064211200 in file fut0lst.ic line 83 InnoDB: Failing assertion: addr.page == FIL_NULL || addr.boffset >= FIL_PAGE_DATA InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: about forcing recovery. 02:51:24 UTC - mysqld got signal 6 ; Per the manual, I went to the data directory (/var/lib/mysql) and ran this: myisamchk --silent --force */*.MYI Then: $ sudo mysqld ... InnoDB: Your database may be corrupt or you may have copied the InnoDB InnoDB: tablespace but not the InnoDB log files. See InnoDB: http://dev.mysql.com/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: for more information. ... Is my database corrupt? What can I do to recover? Re-install mysql? Something less drastic? I'm fine with losing the database, I just want a working system.

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  • Using hdparm for better performance on Web Servers

    - by Rishav
    I just heard about using hdparams to optimize the Hard Disk Performance of a server ? Is this common practice ? What file systems do you use ? I generally deploy on the second last release of Ubuntu for stability reasons, do you some other filesystems or use distributed file systems from the get go ? Do the hdparam settings change for different File systems ? I haven't tried this yet, so how much difference do changes like this make ?

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  • pfsense log file retention

    - by Colin Pickard
    We have a pfSense firewall in our datacentre. By default, pfSense is only storing 500K of firewall filter logs, which is only a few hours for us. How can I increase this? pfSense uses clog rather than the usual BSD newsyslog. I only want the log for debugging firewall rules, not compliance or anything, and the firewall has 100GB of spare disk space, so I'd rather have the logs on the firewall itself than set up a syslog server.

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  • Exchange DEAD! Server recovered but no users can log in

    - by erotsppa
    Yesterday we had a hardware failure and brought our exchange server down. The hardware was repaired and the server was brought back up. Windows server 2008 did the disk check upon bootup and everything was recovered. However, no users can log into their exchange account! This is true with IMAP, Exchange and OWA! All three of them, refused to accept any users. For example when I try to access OWA, I get the following page http://pastie.org/584061 We verified that all the services are up (IMAP, POP, SMTP, IIS etc). We were able to connect to all those services with their respective ports through telnet. What could be the problem? It looks like the database cannot be mounted, from Exchange management console, when I try to mount the database it gives: Microsoft Exchange Error Failed to mount database 'Mailbox Database'. Mailbox Database Failed Error: Exchange is unable to mount the database that you specified. Specified database: SERVER\First Storage Group\Mailbox Database; Error code: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=-528) . I read online that there is a repair utility, so I tried it. I navigated to my edb file and ran eseutil /p "Mailbox Database.edb". It printed the following output *Repair completed. Database corruption has been repaired! Note: It is recommended that you immediately perform a full backup of this database. If you restore a backup made before the repair, the database will be rolled back to the state it was in at the time of that backup. Operation completed successfully with 595 (JET_wrnDatabaseRepaired, Database cor ruption has been repaired) after 885.750 seconds.* However I am still unable to mount!

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  • How to purge old data from SVN repository

    - by Supratik
    Hi, The SVN repository is growing rapidly in size and it has almost used up the complete hard disk space. How can create a new repository from the current one with last 3 months data and purge/backup the remaining of the data. Is there are any other solution to this problem ? Regards Supratik

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  • Using an SSD with no AHCI [ICH7 base] - Windows 7 hangs frequently

    - by h4xnoodle
    I have a Shuttle Intel G31 + ICH7 (base -- not M/R etc) system. I just bought an OCZ Vertex 3 120gb [VTX3-25SAT3-120G] which includes the Sandforce 2218 firmware. The ICH7 does not support AHCI. I understand that this can be a problem. What I don't understand, is if it's necessary to have the proper performance of this drive. I know that without AHCI I may get a limited read/write speed -- this is fine. What my concern is, is the constant freezing/hangs I'm getting with Windows 7 on any disk activity. The 'Highest Active Time' flip-flops from 0 to 100% every minute or so regardless of large or small files. EDIT: The threads/processes with the highest response time is the kernel. I've been reading about other people with Shuttle SG31G2s, and they seem to be using SSDs no problem. Is this the controller's fault? The fact that I do not have AHCI enabled? It makes sense to me that if this SSD requires AHCI features that it would cause Windows to hang, but I would like to fully determine my situation before returning things/reformatting. To initially have my drive recognise the SSD at all, I had to change the BIOS option to Force Gen II instead of Auto for the SATA controller. I then installed Windows with no problem. There were no errors in the event log related to disk usage, but watching the perfmon I could see the highest active time and the processes (usually pagefile.sys being written to, or chrome/firefox caching) which was correlated to the hanging. So now what I need answered is: should I be returning this SSD and getting one with a different controller, or returning the SSD all-together as it will never work out and I will continue to get these hangs. Posts I've read: Windows 7 New SSD SATA AHCI? -- suggests to use AHCI http://forums.anandtech.com/showthread.php?t=2189868 -- Sandforce issues Windows 7 freezes with SSD -- and attached posts Why does my Windows 7 PC / SSD drive keep freezing? -- this is not the controller I have, but still a related issue. Windows 7 hangs after longer inactivity of user -- also tried messing with power settings with no luck. It was already set to 'Never' for turning off HDDs.

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  • Just to not to be ignorant.

    - by atch
    Could anyone explain to me why is it that producers of processors claim that their processor can perform so many thousands (or millions) operations per second and yet typical program (Word, VS etc.) on my machine with 4GB, 3500hz starts with no less than 10 sec. Have to mention that I've just formatted disk and tick any necessary boxes to optimize my machine. So if for example outlook starts in 10 sec I wonder how many millions of operations have to be performed to run such program? Thanks

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  • nothing in dev folder

    - by 4321bust
    hi, i'm new to this so bear with me plz. im attempting to set up git on my mac and need to be using my dev folder. however, there seems to be nothing in my folder ("zero KB on disk") with no sub directories listed. other hidden directories are intact. i've never really gone this deep into things before so i'm not sure how/why anything would previously have been deleted. any help greatly appreciated.

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  • How to format new HDD windows XP

    - by c0mrade
    I just bought new SATA 1TB Baracuda HDD, I inserted and my windows didn't recognize it. Because I didn't have any other OS or anything to format it I used Centos i386 installation to format it. I of course disconnected my original disk from the motherboard and formatted it using CENTOS.. but now when I come back to the windows I can't format this HDD. Its recognized as RAW. What can I do to make it work?

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  • How to format new HDD windows XP

    - by c0mrade
    I just bought new SATA 1TB Baracuda HDD, I inserted and my windows didn't recognize it. Because I didn't have any other OS or anything to format it I used Centos i386 installation to format it. I of course disconnected my original disk from the motherboard and formatted it using CENTOS.. but now when I come back to the windows I can't format this HDD. Its recognized as RAW. What can I do to make it work?

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  • convert multiple segments of DVD to FLV

    - by Josh
    I have a DVD of footage that I need to convert to FLV. I would rather not convert the whole disk as I only need specific segments. Is there a program that I can input start and end times and to get multiple files of these segments? Can you also advise on the best settings to use for best quality at the smallest file sizes. I'm working on a Vista 64bit machine. Thanks. Josh

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  • Can an image based backup potentially corrupt data?

    - by ServerAdminGuy45
    I'm considering doing image based backups (Acronis) on production Windows systems during non-peak hours. I'm just wondering if they can potentially lead to application data corruption. Lets say that I have a database that is getting hit pretty hard. Could I potentially have the beginning blocks of the database be commit ed to the image, data inserted into the db (which changes the beginning blocks of the DB on the server but not the image), then the blocks of data committed to the image (leading to an inconsistent state). Here's an example of what I'm trying to illustrate. Imagine a simple data structure which has a number in the front which represents the number of "a"s in a file. The number and data are delimited by a "-". For example: 4-ajjjjjjjajuuuuuuuaoffffa If an "a" is changed, the datastructure resets the number in the begining of the file such as: 3-ajjjjjjjajuuuuuuuboffffa I assume acronis writes block by block being a straight up image so here is what i'm invisioning happening with my database t0: 4-ajjjjjjjajuuuuuuuaoffffa ^pointer is here t1: 4-ajjjjjjjajuuuuuuuaoffffa ^pointer is here (all data before this is comitted to the image) t2: 4-ajjjjjjjajuuuuuuuboffffa ^pointer is here (all data before this is comitted to the image) Also notice how one of the "a"s change to a b. There are only 3 "a"s now t3: 4-ajjjjjjjajuuuuuuuboffffa ^pointer is here (all data before this is comitted to the image) The final image now reads "4-ajjjjjjjajuuuuuuuboffffa", while the true data is "3-ajjjjjjjajuuuuuuuboffffa" leading to a corrupt "database". Basically changes further down the blockchain could be reflected in the image, while important header and synchronization could already be committed. The out of date header information doesn't accurately reflect the structure of the blocks to come.

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  • Install Jas Mac OS X [closed]

    - by Sauron
    I am trying to install OS X on my PC (Hackintosh), using JAS Mac OS X for Intel. I have read lot of tutorials explaining how to install it on a PC with IDE hard disk, but my PC has a SATA HDD. How can I install Jas Mac OS X on a PC with a SATA hard drive? With JAS, it does not show any of my hard drives drives during the OS X install.

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  • How to create a snapshot volume to a remote server using kvm?

    - by Purres
    I want to backup a few virtual machines to a backup server. Here're the backup steps. suspend a virtual machine create a snapshot of the virtual machine using lvcreate -s resume a virtual machine dd if=/virtual_machine_path | lzop > /temp/backup.lzo rsync /temp/backup.lzo -e "ssh " 1.2.3.4:/backup_path/ However, the hypervisor server doesn't have enough hard disk space to create a snapshot in step 2. Is there a way to create a logical volume snapshot to a remote server?

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  • Deleting windows.edb and unchecking Indexing service lead to hard drive file records swapping

    - by linni
    I followed the instructions listed here:http://www.mydigitallife.info/2007/09/18/turn-off-and-disable-search-indexing-service-in-windows-xp/ to free up space on hard drive by deleting the windows.edb indexing file... I also stopped windows search service as mentioned in the comments following the article. In addition to unchecking the "Allow Indexing Service to index this disk for fast file searching" check box on the properties dialog for the C:\ drive, I did the same for two usb connected hard drives (J:\ and I:\ ). I'm not sure why I did that, thought it might shrink the windows.edb file so I wouldn't have to delete it (which sounded a bit risky in my ears at the time). The file of course didn't shrink so I ended up deleting it and freeing up over 3 GB of space, yeehaw. However, as soon as I had done this I could not access the usb connected hard drives anymore. The error I got was "I:\photos is not accessible" "The file or directory is corrupted and unreadable" when I tried to open the photos directory on I:\ Here is where I enter the twilight zone... I try disconnecting I:\ usb hard drive. But XP shows me that instead J:\ drive has disconnected and I:\ is still there. So I disconnect both drives and restart the computer. I then connect one drive, but it lists up the contents of the other drive on root level. I tried connecting the drives vice versa and the same thing happens. I try taking one of the hard drives to another computer and when I connect it there it lists up not its own contents but the contents of the other hard drive and gives the same error as above when I try and access any of the folders (even folders on the root that have the same name as folders on the other drive (e.g. J:\photos and I:\photos)??? And no, this is not a me mixing up my drive letters. Computer Manager - Disk management shows the same result as explorer: The drive size is correct (one is 500GB, the other is 640GB) but the drive name is of the opposite drive, as long as the contents. Also, one drive was full of data and the other almost empty but they incorrectly show their free space status of the other drive. Somehow the usb drives seem to have switched file tables, file records, boot records or something, extremely weird! Even weirder, if I try and create a text file or folder on this drive, it works fine, accessing them, saving, whatever, all good, but accessing any other data on the drive gives me an error. Does anyone have a clue what is going on and more importantly, how I can restore the correct folder listings to access my family photos ??? cheers, linni

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  • Setup of high-end web server and DB server cluster on Amazon EC2: Is this how it's done?

    - by user1086584
    Amazon is so technical, I want to confirm that my understanding is correct. We have a large 500 GB database. (OrientDB.) We will have it mirrored to one another in the same Availability Zone. We believe the database size will grow rapidly. The plan is: Get 4 large instances that are compatible types with Placement Groups (as well as ideally, Enhanced Networking) (2 for web, 2 for DB.) We use an EBS-backed instances to store our operating system. Discussion here: http://alestic.com/2012/01/ec2-ebs-boot-recommended We can set up ephemeral SSD instance storage as swap space. (But it is lost after even a reboot. I hear its hard to add ephemeral storage if booting from EBS, but possible.) For offsite backup, we will take periodic snapshots and store them on S3. Obviously we need to ensure the database is in a safe state when that snapshot happens to avoid corruption. (Any hints here, aside from shutting down the DB?) If the database gets too big, we need to create a EBS volume that's larger. We can use RAID to break the 1 TB limit: http://alestic.com/2009/06/ec2-ebs-raid Static assets on web servers will be stored on S3. Is that correct? Or am I missing something?

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  • How to remove all Couchdb versions in Ubuntu 10.04 (server)? ( after multiple installs )

    - by DjangoRocks
    Hi all, I have done multiple installs of CouchDB using sudo aptitude install couchdb sudo ap-get install couchdb and more recently based on the instructions found at L http://wiki.apache.org/couchdb/Installing_on_Ubuntu May I know how do I uninstall or remove all the above installations? Best Regards. +++++++++++++++++++UPDATE++++++++++++++++++++++++ I've tried running the following commands: apt-get remove couchdb apt-get purge couchdb but received the following errors: (Reading database ... 39814 files and directories currently installed.) Removing couchdb ... invoke-rc.d: initscript couchdb, action "stop" failed. dpkg: error processing couchdb (--remove): subprocess installed pre-removal script returned error exit status 1 invoke-rc.d: initscript couchdb, action "start" failed. dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: couchdb E: Sub-process /usr/bin/dpkg returned an error code (1) May I know how do i fix this? ON issuing the command : dpkg -l | grep couchdb I received the following response: rF couchdb 0.10.0-1ubuntu2 RESTful document oriented database, system D iF couchdb-bin 0.10.0-1ubuntu2 RESTful document oriented database, programs How do i uninstall CouchDB ? I think there's some file corruption?

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  • How do I use Group Policy on a domain to delete Temporary Internet Files?

    - by Muhammad Ali
    I have a domain controller running on Windows 2008 Server R2 and users login to application servers on which Windows 2003 Server SP2 is installed. I have applied a Group Policy to clean temporary internet files on exit i.e to delete all temporary internet files when users close the browser. But the group policy doesn't seem to work as user profile size keeps on increasing and the major space is occupied by temporary internet files therefore increasing the disk usage. How can i enforce automatic deletion of temporary internet files?

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