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• Windows Server 2008 R2 install reboots unexpectedly during "Completing installation" phase

  - by knda

  I am attempting to install Windows Server 2008 R2 onto a Cisco UCS C201 M2 rack mounted server but am having major difficulties and wondering if anyone has some insight or items they could recommend for me to look at to get this one resolved. Installation is being attempted via the Cisco remote console (using CIMC's Virtual dvd-rom).. following the first phase of Setup where the installation files are copied to the target hard drive, then a reboot occurs to load Setup from the HDD, mid-way in the "Completing Installation" phase the system then reboots unexpectedly. System configuration Cisco UCS C201 M2 (2RU rack mounted server) 16GB RAM, 2x 73GB 15K SAS, 4x 300GB 10k SAS Add-on cards - Intel quad-port GigE card (no fibre channel cards) Storage - LSI MegaRAID SAS 9261-8i. onboard SATA is disabled (no SATA drives connected) KVM - Belkin No physical DVD-ROM.. :( I have... Run memtest86+, no RAM faults Disabled/enabled SATA support (BIOS) Attempted install from USB DVD-ROM, no effect Attempted unattended install scripted via Cisco Configuration Manager DVD provided Removed Belkin KVM in case that was causing drama Discovered that the Cisco website is "awesome" for searching for PDFs/Drivers cough, reverted back to Google Downloaded latest LSI drivers from LSI's site and used during Server 2008 install checked Windows ISO against checksum's from MS site checked Windows ISO by using it for an install in a VM Running out of ways to troubleshoot this as I am not sure how to enable any sort of 'verbose' mode during the setup process. Next step I have planned is to remove the Intel NIC and try the installation again.. Edit: Problem was the "Cisco INTEL QUAD PT GBE" (1000/PT) .. will have to see if this card is faulty or if it's just drivers.. thanks for the help.

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• needing storage integrity (write/read) test - for BASH

  - by Mr. Bash

  In need of shell scripts / bash commands to verify data integrity of local harddrives, usb-drives, etc, ... Like the famous www.heise.de/download/h2testw; or something that is at least common within repositories. (h2testw writes a specific datastring over and over onto the medium, then reads it again to verify if it was written correctly and displays write/read time/speed.) please no dd if=/dev/random of=/dev/sdx bs=1k && dd if=/dev/sdx of=/dev/null bs=1k since it won't verify if everything was written correctly. It is only a test if read/write is successful to the device. So far, I'm not too happy with badblocks -w -v /dev/sdx1 either, since it seems rather slow and I don't know what it exactly writes, and if it considers wear-leveling on flash media. There is also a program named F3 http://oss.digirati.com.br/f3/ that needs to be compiled. Designed after h2testw, the concept sounds interesting, i'd just rather have it as a ready to go bash script.

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• Using two ports on my ZyXel USG gateway to patch two devices together?

  - by Matthew Beza

  I don't know if this is possible but it would save me many long drives! I have drawn, with my epic MS Paint skills, my current setup. I have a ZyXel USG300 Gateway with a built in 5 port switch. It supports bridging, tunnles, VLANs, etc.. I have a Cisco WLC2112 plugged into port 6 (P6). The cisco is set to 192.168.6.2 and P6 is set to 192.168.6.1. This works but I need to incorporate a Nomadix AG3000 to handle guests. (Router (A) in the picture). So I need the Cisco WLC2112 to use the Nomadix as if it where plugged into it's LAN port. Right now the Nomadix WAN Port is plugged into (P2) on the ZyXel, and the Nomadix LAN port is plugged into (P3). Is it possible to set something up where (P3) and (P6) are somehow "Patched" as if the Cisco was plugged directly into the Nomadix LAN port? Basically making the ZyXel a fancy Cat5e coupler?

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• 24TB RAID 6 configuration

  - by Phil

  I am in charge of a new website in a niche industry that stores lots of data (10+ TB per client, growing to 2 or 3 clients soon). We are considering ordering about $5000 worth of 3TB drives (10 in a RAID 6 configuration and 10 for backup), which will give us approximately 24 TB of production storage. The data will be written once and remain unmodified for the lifetime of the website, so we only need to do a backup one time. I understand basic RAID theory, however I am not experienced with it. My question is, does this sound like a good configuration? What potential problems could this setup cause? Also, what is the best way to do a one-time backup? Have two RAID 6 arrays, one for offsite backup and one for production? Or should I backup the RAID 6 production array to a JBOD? EDIT: The data server is running Windows 2008 Server x64. EDIT 2: To reduce rebuild time, what would you think about using two RAID 5's instead of one RAID 6?

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• Can't get an IBM xSeries 345 server to load Windows Server 2003 using ServerGuide utility

  - by Kyle Noland

  I have a client that has an IBM xSeries 345 eServer. Per the IBM support website, I have downloaded the ServerGuide Setup 7.4.17 installation ISO and burned a bootable CD. The CD boots fine and loads the utility. I walk through the following screens without any issue: Set the date and Time Detect the IBM ServeRAID card and install the latest firmware Clear the hard disks Set up the RAID array The next step is format the NOS partition. I select my partition size and the utility goes through the following steps: Creating NOS partition Formatting NOS partition (NTFS) Copying W32 files The copying W32 files takes about 10 minutes. I see the CD drive and disks working hard. When the copying is complete, I'm taken to a blank page just NOS Partitioning at the top. At the bottom of the screen are the familiar Back and Exit buttons. I see the place where the Next button should be, and if I click on it I can tell there is something there, but the space is empty. No button is displayed and clicking the empty spot doesn't ever take me to the next screen. I can't load the OS until I get past this part. I have already tried: Burning multiple copies and versions of the ServerGuide CD Letting the final screen just sit there over the weekend thinking it might advance after syncing the drives or something Has anybody else seen this? I'm really at a loss here.

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• Cannot Install Bootcamp on Mac Fusion Drive

  - by user3377019

  I have two drive installed in my mid-2013 Macbook pro. It is running osx maverick. I set the two drives (an ssd and a regular HD) up using the fusion drive (following the diy fusion drive guides out there). I went ahead and created a 40gb partition to host my windows install. I removed the SSD, installed windows, then reinstalled the SSD. As soon as the ssd was placed back in the bootcamp partition stopped booting. I get a blinking cursor on a black screen. I checked out the partition info in disk utility and it appears that the windows partition is not marked bootable. Below is some info I managed to gather. I am wondering if there is a way to fix the partition table so my bootcamp will boot. /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *120.0 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_CoreStorage 119.7 GB disk0s2 3: Apple_Boot Boot OS X 134.2 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk1 1: EFI EFI 209.7 MB disk1s1 2: Microsoft Basic Data BOOTCAMP 40.0 GB disk1s2 3: Apple_CoreStorage 459.2 GB disk1s3 4: Apple_Boot Boot OS X 650.0 MB disk1s4 /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Macintosh HD *573.4 GB disk2 Name : BOOTCAMP Type : Partition Disk Identifier : disk1s2 Mount Point : /Volumes/BOOTCAMP File System : Windows NT File System (NTFS) Connection Bus : SATA Device Tree : IODeviceTree:/PCI0@0/SATA@1F,2/PRT1@1/PMP@0 Writable : No Universal Unique Identifier : 584BAED6-4C46-4F18-93B3-957F6E27003C Capacity : 40 GB (39,998,980,096 Bytes) Free Space : 16.34 GB (16,339,972,096 Bytes) Used : 23.66 GB (23,659,003,904 Bytes) Number of Files : 86,424 Number of Folders : 0 Owners Enabled : No Can Turn Owners Off : No Can Be Formatted : No Bootable : No Supports Journaling : No Journaled : No Disk Number : 1 Partition Number : 2

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• Elevating UAC via .bat file?

  - by jslaker

  Pretty straightforward one that I'm having trouble finding an answer to. serverfault previously helped me with finding a way to automate Windows updates without using WSUS. It's working fantastically, but to run it over the network, you have to first mount a shared drive. That's pretty simple XP since you just mount the drive and run the updater. On Vista and W7, though, this all has to be done with elevated privileges to work correctly. The UAC account can't see network drives mounted by the regular user, so in order to get everything working, I have to mount the share via net use from an escalated shell. I'd like to automate mounting this share and launching the updater via a simple .bat file. I could probably just instruct everybody to right click "Run as Administrator" on the .bat file, but I'd like to keep things as simple as possible and have the .bat automatically prompt the user to escalate their privileges. Since these computers don't belong to us, I can't count on anything like Powershell being installed, so that rules any solution along those lines out and pretty much have to rely on things that would be included in an RTM Vista install. I'm hoping I'm mostly missing something obvious here. :)

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• SQL Full-Text indexing not populating

  - by Sam

  Hi, We installed a clustered SQL 2005 installation on windows 2008 and reattached our san drives from another machine and restored to do a migration to new hardware. There have been a few minor issues, but this one has me stuck. Trying to populate Full-Text indexes is not working. I create a basic table with some simple text in a new database and get the same results as old indexes. 2010-09-27 10:30:46.85 spid19s Informational: Full-text Full population initialized for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'). Population sub-tasks: 1. 2010-09-27 10:31:15.36 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001DF. Attempt will be made to reindex it. 2010-09-27 10:31:15.37 spid19s The component 'MSFTE.DLL' reported error while indexing. Component path 'D:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\MSFTE.DLL'. 2010-09-27 10:31:15.37 spid19s Error '0x80070003' occurred during full-text index population for table or indexed view '[SQL_DBA].[dbo].[CIS_Report_Executions]' (table or indexed view ID '1767677345', database ID '5'), full-text key value 0x000001E0. Attempt will be made to reindex it. The rebuild/repopulate procedure finishes, but I get zero rows in the index. The .dll in the message is present and the service accounts have access to this. My FTData also has data in it, so it seems there wouldn't be permission issue on this folder. Application throws this error: “PHP Warning: mssql_query() [function.mssql-query]: message: Full-text catalog 'ikm_PageIndex_FText' is in an unusable state. Drop and re-create this full-text catalog. (severity 16) in E:\Inetpub\knowledgebase_insidemesa\lib\database\mssql.php on line 154” A microsoft discussion is the only post I found which had claimed to fix this - said it was registry related, but then didn't post the fix.

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• Does a 3ware "ECC-ERROR" matter on a JBOD when I have ZFS?

  - by Stefan Lasiewski

  I have a FreeBSD 8.x machine running ZFS and with a 3ware 9690SA controller. The 3ware controller shows an ECC-ERROR with one of the disks: //host> /c0 show VPort Status Unit Size Type Phy Encl-Slot Model ------------------------------------------------------------------------------ p0 OK u0 279.39 GB SAS 0 - SEAGATE ST3300657SS p1 OK u0 279.39 GB SAS 1 - SEAGATE ST3300657SS p2 OK u1 931.51 GB SAS 2 - SEAGATE ST31000640SS p3 ECC-ERROR u2 931.51 GB SAS 3 - SEAGATE ST31000640SS p4 OK u3 931.51 GB SAS 4 - SEAGATE ST31000640SS /c0 show events shows no ECC errors in it's recent history. ZFS does not currently detect any errors. zpool status says No known data errors My question: Is this ECC-ERROR something that I need to be concerned about? According to the 3ware CLI 9.5.2 Manual, an ECC-ERROR means that the 3ware controller caught a read-error for one or more sectors on this drive. This sometimes occurs when a RAID array is recovering from a failed disk. I believe that ECC-ERRORS can also be detected when the 3ware Controller verifies each disk. None of the drives have failed and thus there was no drive rebuild, so I assume that 3ware discovered a bad sector when it ran it's weekly auto-verify scan of the disks. Is this a safe assumption? According to our logs, ZFS has not detected any bad sectors on this drive. ZFS can work around read errors -- if ZFS detects a bad sector on the drive, it will simply mark that sector as bad and never use it again. From the ZFS perspective one bad sector isn't a big deal, although it might indicate that the drive is starting to go bad.

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• Windows XP Installation problems

  - by Samurai Waffle

  I'm having trouble installing Windows XP on a computer... My friend gave me her old computer, it was riddled with viruses and ran extremely slow. I did my best to clean it out, and after a bit I discovered it had a boot sector virus. So I downloaded the Ultimate Boot CD (installed it on a flash drive), and ran Darik's nuke and boot to completely wipe the hard drive. I then tried to reinstall Windows XP from a USB drive... It doesn't work. The computer just stalls and never boots. The computers dvd drive doesn't work, so I borrowed a spare drive that another friend had, and tried to run a Windows XP cd. For a bit I got the stop 7B error, but now it just stalls like the USB drive does. Since then I've booted back into the Ultimate Boot CD, and ran partition magic. Repartitioned the Hard Drive, and copied the files on the Windows cd to the hard drive. I was wondering if there is any way I can make it run the setup.exe off the hard drive. I have the UBCD at my disposal, but have yet to come up with a way to do it. Any help is greatly appreciated.

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• Managing a test iSCSI target server

  - by dyasny

  Hi all, I am using a RHEL server with a few hard drives, and tgtd as the iscsi target software. I a looking for a way to allocate and deallocate space and targets with that space, without restarting my system, or harming other LUNs. Currently, all my HDDs are PVs in a single VG, and I lvcreate/lvremove as required, and then export the allocated LVs using a tgt script: usr/sbin/tgtadm --lld iscsi --op new --mode target --tid=1 --targetname iqn.2001-04.com.lab.gss:300gb /usr/sbin/tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /dev/mapper/iscsi_vg-iscsi_300Gb /usr/sbin/tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL /usr/sbin/tgtadm --lld iscsi --op new --mode target --tid=2 --targetname iqn.2001-04.com.lab.gss:200gb /usr/sbin/tgtadm --lld iscsi --op new --mode logicalunit --tid 2 --lun 1 -b /dev/mapper/iscsi_vg-iscsi_200Gb /usr/sbin/tgtadm --lld iscsi --op bind --mode target --tid 2 -I ALL /usr/sbin/tgtadm --lld iscsi --op new --mode target --tid=3 --targetname iqn.2001-04.com.lab.gss:100gb /usr/sbin/tgtadm --lld iscsi --op new --mode logicalunit --tid 3 --lun 1 -b /dev/mapper/iscsi_vg-iscsi_100Gb /usr/sbin/tgtadm --lld iscsi --op bind --mode target --tid 3 -I ALL tgtadm --mode target --op show So in order to remove a LUN, I stop the tgtd service, lvremove the lv, and remove the entry from the iscsi target script When I add a lun, I run lvcreate, and then add an entry to the script and run it. This is not quite optimal, since restarting the service is a bad idea while other LUNs are busy, so I am looking for a more scalable and safer way. Thanks

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• Problems with image/file upload in MediaWiki on Windows 2008 Server R2, using wrong temp directory

  - by Lasse V. Karlsen

  I have installed MediaWiki 1.15.2 under IIS as per the MediaWiki installation instructions for Windows 2008 Server. I have configured PHP to use a specific temp directory: upload_tmp_dir="C:\php\uploadtemp" I have specified that MediaWiki is allowed to upload: $wgEnableUploads = true; But when I try to upload an image, I get this error message in my browser: Internal error Could not find file "C:\Windows\Temp\php1AEA.tmp". Retrying will simply give me a new filename, but in the same location. The directory does not have any php* files in it, but since they're "temporary", they might be gone in a flash before Windows Explorer is able to show them so that might be a red herring. I've googled for this, and the most promising lead I found was on this page: Image upload problem - Is this bug fixed?, but since the text says "a bugfix was posted on the bug-report page", but provides no link to which bug page this relates to (php or mediawiki) nor the actual bug report, I've not found conclusively the bug report in question so that didn't help me much. Lots of pages indicates that this is a permission issue, so I tried setting permissions on c:\windows\temp as Modify by Everyone, still no dice. I tried changing the two system environment variables TEMP and TMP to point to C:\Temp instead, but MediaWiki still complains about not finding the file in C:\Windows\Temp. Note that I don't care a lot about where the files will actually be stored temporarily, so c:\windows\temp is fine by me. I do, however, care about them actually being uploaded correctly. Does anyone know of a fix, have any leads I can follow, or whatnot? The server is running Windows 2008 Server R2, all patches installed, and the PHP installed is 5.3.2, using IIS FastCGI.

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• Networkmapping script (VBS) Vista doesn't work, XP does

  - by The_cobra666

  Hi all, I've got a weird problem, (like always :p ) Okay: Situation: Windows 2003 domain with XP clients. With a GPO I'm running a VBS script on login to map a few drives. This works great on XP, but not on Vista. If I manually run the script after the user has logged on, it works. So I know the script works on Vista, it just doesn't run via the GPO. The user has admin privileges. I also have the same problem on Windows 7 RC1. So it must be related. The script: on error resume next Dim objNetwork Dim strDriveLetter, strRemotePath, strUserName strDriveLetter = "Z:" strRemotePath = "\\Onsgeluk.ons_geluk.local\Profieldoc" Set objNetwork = WScript.CreateObject("WScript.Network") strUserName = objNetwork.UserName objNetwork.RemoveNetworkDrive "Z:" objNetwork.MapNetworkDrive strDriveLetter, strRemotePath _ & "\" & strUserName objNetwork.RemoveNetworkDrive "X:" objNetwork.MapNetworkDrive "X:" , "\\Onsgeluk.ons_geluk.local\Data" objNetwork.RemoveNetworkDrive "Y:" objNetwork.MapNetworkDrive "Y:" , "\\Onsgeluk.ons_geluk.local\Mappen\hoofdverpleging" Does anyone have a clue? Thanks in advance guys (and girls) ps: sorry for my bad english!

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• SSD, AHCI and write performance

  - by Dan

  We've started to deploy SSD drives to our developers workstations. At this moment we're having the unpleasant surprise that the systems using the new SSDs often freeze, with the HDD activity led blinking or being continuously on. Benchmarks shows read speeds around 180 MB/s, but write speeds around 5 MB/s. All developers are using Windows 7 Enterprise, 64 bit, SP1. One of our developers suggested (based on his experience) the following sequence: backup the workstation use a tool to completely erase the SSD make sure AHCI is enabled in BIOS install Windows restore from backup So far, this procedure seems to work (we're still testing, but write speed seems to be 120 MB/s). There are some questions in this context: why do we have to completely reinstall Windows? Is it possible to clean the SSD without reinstalling Windows? Is there a reliable tool? If AHCI was disabled when Windows was installed and we enable it, shouldn't this be enough to correct the write performance issue? If we have to completely erase the SSDs, does this mean the SSDs we've received were used before (SH)? I'm wondering this because the package I've got was open (I didn't think about it at that time, as I considered one of my coworkers simply took a peek inside the package). Has anyone seen a similar problem before?

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• Microsoft Office 2003 applications crash on 'Save As' to a network mapped drive

  - by Archit Baweja

  Hey guys, so I'm not sure if it belongs on ServerFault forums so figured I'd ask here first because its a workstation/client side issue. I have a client where we have windows server 2003 setup, with windows xp professional setup on all the workstations. We've setup a 'domain' and all workstations logon to the domain (authenticated by the Windows Domain Controller), and in the logon script we map drives on to each workstation. Everything is working peachy except for one workstation, where when I open a file in excel from a mapped drive, it opens fine, but when I go to hit Save As, the Save As dialog pops and hangs up. I cannot perform any other action in excel. When I try cancel the Save As dialog, excel crashes. The mapped drive opens up fine in Windows Explorer. To further investigate this issue, I created a new blank text document on the network drive in Windows Explorer. I then opened it. Then hit save as, and the Save As dialog opened up fine and it would let me save the document. I repeated the above steps for a word document. However this time the Save As dialog hung/froze again. So I'd imagine its a Microsoft Office Issue. Any ideas?

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• Dell PowerEdge 1600SC Server won't boot from Fedora 12 DVD because of CD only drive.

  - by studiohack23

  Dell PowerEdge 1600SC Server won't boot from Fedora 12 DVD in the drive because it only supports CDs as I found out after the fact. I'm a complete novice @ servers, so if you need more detail, let me know, and I'll try to provide it. This server is around 4-6 years old. it has "PXE" boot, not sure what that means? This particular server has 3 RAID hard drives. As far as I know, they have all been wiped. I looked up the service tag on Dell, and it has: Compact Disk Drive, 650M, I Internal, Half Height, 48X, BlackHitachi LG Data Storage as its CD drive. Thus, the CD drive does not support DVDs, so installation will have to be via a live CD. However, I'm trying to put Amahi Home Server (http://www.amahi.org/), and Live CD/USB stick installs are not recommended unless one is an expert Linux user. any suggestions as to how to get around this? PROBLEM SOLVED! THANKS for all the help!

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• restoring a failed SBS 2000 box...

  - by Brad Pears

  Hi there, I read a post where you had mentioned you have had a PERC card blow up on you in an SBS box... I've got a similar situation where one of my RAID drives failed and then the power supply failed before I could replace the drive... I then replaced the power supply and the failed drive and reconfigured the RAID array. I had a recent full backup of the my Win2k SBS's C: drive stored on my SYmantec backup exec server so I installed win2K server on the c: partition and then once I had that up and running, installed the backup exec agent so as to do a restore of the entire c drive including system state. THis all worked just fine, until I had to reboot. I received an "incorrect drive configuration" error and then it hangs. I figure that likely makes sense becasue I think my RAID array is configured slightly different now in that the partitions may be sizeded ever so slightly differently now than they were before I think... Is there a way I can just restore from my backup BUT maybe exclude some of the registry and hidden boot files it wants to restore so that it is booting with the current configuration now active on that machine - not the pre blow up configuration files? I also read a post that indicated you might have to install the exact same service pack etc... etc.. before attemting a restore but that does not make sense to me being as the entire c drive contents are going to be overwritten by the restore anyway? THe basic OS install is just to be able to get the backup exec agent installed . I can;t understand why one would need to install the exact same SP level. CAn you shed some light on what I might be able to do to get this thing up and running? Thanks,Brad

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• How do you handle data archiving?

  - by 20th Century Boy

  Backups are one thing, but long term archival is another. For example, you might be required to store emails for 7 years, or keep all project data indefinitely. I used to save archives to tape, but then I've had tapes get destroyed (drives rip the tape out). So...write to 2 tapes I hear you say. Is that what others do? Have 2 (or more) tapes of the same data for redundancy? But then the other issue is that tapes cannot usually be read by different backup software vendors. Eg if you go from Arcserve - Backup Exec - Commvault over 10 years you would need to keep all 3 systems so that you could restore old data. Likewise for hardware. Old tapes might not be barcoded. Might not be compatible with the new library etc etc. So do you keep old tape hardware AND old software just in case you might need to restore a 10 year-old file? Or...when you move to a new backup system do you migrate all archived data to the new system and re-archive it onto new tapes? That could be a huge job. Any thoughts?

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• Temporary boot problem after thunder storm - likely causes?

  - by alastairs

  The village where I live was sat under a thunder cloud for most of Friday, and we suffered a few power fluctuations (specifically, what seemed to be split-second outages). When I got back home from work, I found that my PCs had shut down during one of these outages. When I went to boot one of them back up, I couldn't get anything to display on screen, nor did the boot seem to complete correctly. I tried a number of things - unplugging different bits of hardware, swapping graphics adaptors, etc. - to no avail. I thought I was looking at a fried motherboard or CPU. Power seemed to be distributed correctly to the peripherals (the drives all appeared to be working) so I figured it couldn't be the PSU. Eventually I unplugged it from the mains and left it overnight (approx 12hrs unplugged). I tried it again this morning, and it booted up correctly. Woo-hoo! I have all my equipment protected by surge-protected power strips, so I don't think a spike caused these problems. Obviously it has something to do with the power fluctuations, and maybe the PSU in the problem machine got itself confused somehow. The questions are, for future reference and to help people with similar problems: What are the likely causes of the boot failure I experienced? Is a UPS a simple and cost-effective solution, or might other things help prevent this happening in future? What UPS can you recommend (my budget is limited)?

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• Are SATA II and SATA 3.0 Gbps compatible?

  - by Johnny Maelstrom

  I am trying to check that if I buy a new internal HDD it will work in the NAS I am buying. Currently I'm confused about naming schemes and once that is resolved whether there is compatibility. I will gladly author this question to be more general if there is not already an article helping with the confusion of SATA naming and standards. I see similar, but not identical questions and will accept this as a duplicate if thought as such. The specifications on the eCommerce site for the NAS says, "Controller Interface Type Serial ATA-150", the product home page for the manufacturer says, "Compatible with SATA and SATA II HDD". The specifications on the eCommerce site for the hard drives say, "Interface Type Serial ATA-300", the product home page for the manufacturer says, "Interface SATA 3.0 Gbps" Wikipedia says many things about different naming conventions, the closest being, "SATA II 3.0 Gbit/s, which was colloquially referred to as "SATA 3G" [bps] or "SATA 300" [MB/s] since 1.5 Gbit/s SATA I and 1.5 Gbit/s SATA II were referred to as both "SATA 1.5G" [b/s] or "SATA 150" [MB/s]). Therefore, they will operate with negligible differences between them." Are SATA II and SATA 3.0 Gbps the same? I feel I'm tantalisingly close to getting a definitive answer here before I purchase, but really want to clear up these naming schemes.

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• EC2: How dangerous is it to turn off fsck for EBS volumes?

  - by Janine

  I have been tearing my hair out trying to figure out why my EC2 instances (made from my own custom AMIs) were taking many tries to come up properly. They would fail with the following error: fsck.ext3: No such file or directory while trying to open /dev/sdf For both of the EBS volumes I was attaching during startup. Finally, I figured out the problem. I had put this in /etc/fstab: /dev/sdf /export ext3 defaults 1 2 /dev/sdi /export2 ext3 defaults 1 2 The 2 tells the system to fsck the drives on the way up. Changing this to /dev/sdf /export ext3 defaults 1 0 /dev/sdi /export2 ext3 defaults 1 0 Avoids the problem completely, but now the volumes are never going to be fsck'd. How much does this matter? Once the instance goes into production it's going to be running pretty much 24/7, so not many fscks would be happening anyway, but still... this just feels like a bad idea. I have not been able to find anyone else even reporting this problem (there are people with the same error message, but different causes). It seems unbelievable that I could be the only person to ever make this mistake, but perhaps I'm just talented that way. :) If there is another solution to the problem I would love to hear it; I have not been able to find one.

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• Copying large files from USB devices to the internal hard drive fails on Mac OS

  - by John M. P. Knox

  I have a second-generation 13" MacBook Air running Mac OS X 10.6.6 with a 2.13 GHz processor, 4 GB of RAM, and a 256 GB SSD hard disk. I often get failures when I attempt to copy a large file or large collection of files from an external USB drive (typically a "Firewire" generation Drobo) to the internal drive. The failure behaves almost exactly as if I had pulled the USB cable from the computer in mid-transfer. I get a warning that I have removed the hard disk improperly. After this event, the drive no longer appears mounted in the finder, and I have to unplug and reinsert the USB cable to mount the drive again. I have also seen a similar problem when using Aperture 3 to import a large number of photos and videos from a USB Compact Flash card reader. The import will fail and I will have to unplug the Card Reader and import the missing items. Oddly, reversing the direction of the copy seems pretty reliable. I've never had a problem copying a large file to a USB device, meaning that I have quite a few large files which are stranded on my Drobo. Model Identifier: MacBookAir3,2 Boot ROM Version: MBA31.0061.B01 I have seen a similar issue reported on Apple's website: http://discussions.apple.com/thread.jspa?threadID=2648590&tstart=0 The only suggested resolutions there seems to be switching to another form of connectivity (e.g. firewire, which does not exist on MacBook Air), or downgrading to Mac OS 10.6.4, or reverting the USB kernel extensions to the 10.6.4 versions: http://discussions.apple.com/message.jspa?messageID=12566073#12582956 I'm not too keen on the idea of downgrading kernel extensions. Does anyone know of a hardware revision without this issue that I can trade up to? Are there any other potential solutions out there?

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• Virtualization and best hardware sharing scenario for me

  - by azera

  Hello, Following this thread on super user, I now want to start installing all my vm on the hardware. As a remainder, i have a (powerful enough) server on which i want to install 3 OS: there is a debian (general dev testbed purposes), an ipcop (network control/firewall) and a freenas (local network file sharing). I'm wondering which scenario would be the best for me and if I will be able to share the hardware to do what i want; either a - install an hypervisor like the free vmware esx and all three vms in it, or b - install debian, and the other two running inside it with virtual box My need being that: the ipcop should handle all network traffic to the internet, meaning all traffic from my main computer but also all traffic from the other two vm the freenas shares should be accessible from the other two vm and my main computer too i don't really care about the debian access, i only need to access it from my main computer, not the other vms Will I need to install additionnal network cards for each vm or can they all share the same one happily ? (right now I have two, one linking the server to my router [which only ipcop is gonna use] and one linking it to my switch [which i would like all three to use]) As for harddrives, I was going to use 1 harddrive cut in 3 partitions to install all three OSes, then add to that the freenas drives, will it be correct ? Thanks a lot for anyone who can help me, this is kind of a vast area and I'm not sure which way to go at all

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• Linux Mint 13 is not booting on dual boot computer

  - by Brian

  thanks in advance for your time. I have 2 hard drives in my computer a 300 GB drive which is my primary drive for windows 7 and a 1.5 TB drive that I'd used for storage. When I got it I partitioned 500 GB for use in Linux. So, I created a bootable USB and clicked the "Install by Current Operating System" option from Mint. It installed it to the free 500 GB like I'd hoped it would. Now, I can't get it to boot though. I've tried using EasyBCD to create the boot entry and it hangs on a black screen. Thanks. EDIT @ Ryhuk It presents a menu with two options 1) Windows and 2) Mint. This was a menu I created with easyBCD. When I select option 1 it boots to windows fine. When I select option 2 it hangs on a black screen with just a white bar flashing (Can't remember what its called, it marks the current cursor location on a text field) and won't respond to any key presses but alt ctrl del.

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• How expensive to run PC 24/7 or how to figure out how to determine it?

  - by jasondavis

  I realize this question is difficult to answer as it would be different based on users location, what there PC is doing and what hardware it consist of, along with other factors but I am hoping someone could give me a very rough estimate. I have always ran many PC's in my home 24/7 and I am just now looking at it from a money/cost of electric point of view. 1) I live in Central Florida. Can anyone guesstomate/estimate the avaerage monthly or daily cost of running your average PC? Intel quad core processor, 1 SSD drive for OS and programs and 4-5 1-2 TB hard drives in a RAID setup for data. 750watt PSU. What would your guess be? 2) Also is there an accurate way to figure this out (non-super technical and confusing to a non-math person please) Also I have seen those kill-a-watt devices, do they figure this kind of stuff out for you? 3) Does a larger PSU make your PC consume more power? Thanks for any help, you can most likely tell I am somewhat lost about this!

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