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Go to SolutionRaid 5 single disk failure, bad boot
I have a T110 / Perc s100/ Raid 5 (3 drives). Ctrl-R shows degraded array, single disk failure/offline.
Server 2003 appears to boot normaly, instead results in blank screen with working mouse arrow in both normal and safe mode. Is an array rebuild still possible once I replace same part no. HDD? Is the bad boot due to degraded array?
Over the top repair has the machine booting, thanks FLASH & PCMEINERS.
I was able to perform simple file back up accept for some directories. Second disk with SP2 still not installed.
I went to use the Windows back up utility and start with system backup and many files skipped with following:
Backup Type: CopyBackup started on 8/25/2015 at 3:54 PM.
Warning: Unable to open "C:\NTDETECT.COM" - skipped.
Reason: The file or directory is corrupted and unreadable.
Error: Could not access portions of directory System State\Boot Files\C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\DAO.
You may not have permission to open the file, or the directory may be missing or damaged.
Please contact the owner or administrator.Warning: Unable to open "C:\PROGRAM FILES\COMMON FILES\MICROSOFT SHARED\DAO" - skipped.
Reason: The file or directory is corrupted and unreadable.
Error: Could not access portions of directory System State\COM+ Class Registration Database.
You may not have permission to open the file, or the directory may be missing or damaged.
Please contact the owner or administrator.
Error: Could not access portions of directory System State\Registry.
You may not have permission to open the file, or the directory may be missing or damaged.
Please contact the owner or administrator.Backup completed on 8/25/2015 at 3:54 PM.
Directories: 4
Files: 1
Bytes: 297,196Should I run chkdsk to attempt to repair? Try to rebuild array? Serversupply sent a seagate refurb but assured it has same DELL firmware with DELL code. Was expecting a wd.
Thanks again
theflash1932
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Posted August 24th, 2015 11:00
It should boot on a degraded array (single disk failed in RAID 5).
You can still rebuild in place of the failed disk, but as far as Windows goes, I would attempt to repair the OS from the installation CD (chkdsk /r, fixboot) after rebuilding the failed disk.
Thank you for your help. Should I place the new drive in failed drive position or use the hot-swappable bay? And just to clarify then, array rebuild will start automatically before OS load, or OS is required with Dell Server Management Software?
When I tried to load OS from cd I get a stop 0x0000007B error before recovery console option.theflash1932
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Posted August 24th, 2015 14:00
Thank you for your help. Should I place the new drive in failed drive position or use the hot-swappable bay? And just to clarify then, array rebuild will start automatically before OS load, or OS is required with Dell Server Management Software? You could use OMSA from the OS, but since you can't access the OS, you won't use it here.
When I tried to load OS from cd I get a stop 0x0000007B error before recovery console option. You need to give Windows the driver for the RAID controller (use the 'hard drive' format, must first be run to extract contents):
http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverId=D1RP4
Because 2003 is old and stupid, you will need to load this via floppy disk or use nLiteOS.com to integrate it into your installation media.
A refurbed drive will be here tomorrow. Is it better to sort out good boot on the two assumed 'good' drives, or add the replacement drive to array before I run chkdsk and try to sort out bad boot.
Also, I read about chkdsk and even rebuild possibly damaging data in remaining disks. Do you think backing up images of the two good drives is required? Maybe that is only if bad drive is left in place, I did disconnect the bad drive completely.
Thanks again. I will work on nLiteOS stuff next.
theflash1932
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Posted August 24th, 2015 22:00
The S100 is a rebranded Intel chipset RAID - it is managed pre-boot. I refuse to use the S-series controllers, so I'll take your word that they are more easily irreparably damaged. I will also recommend against EVER using an S-series controller.
Your advice is noted. So is the issue purely controller, not RAID choice? Would not have made a difference if it was RAID 1 or 5? Our older DELL server runs RAID 1, no problems but unaware of controller.
Your thoughts or any experience on data recovery service, besides the obvious expense?
Thanks again.
theflash1932
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Posted August 24th, 2015 16:00
You may have used Dell's installation utilities, which would have loaded the appropriate drivers for you. You cannot use that process here. I would suggest nLiteOS.com.