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449407
February 13th, 2009 13:00
Predicted Disk Drive Failure?
My PowerEdge 1900 Dell OpenManager Administrator > Storage > Server SAS 5/ir Adapter > Connector 0 (RAID) > Physical Disk has a warning symbol under the Status column and YES under the Predicted Failure column for one of my disk drives. I found a Dell article "SCSI RAID Maintenance Best Practices" that makes reference to a "Sense Code" and "Sense key", but these do not appear in the warning information. Is there a way to find out under what circumstances this warning appears and what is recommended?
Thanks
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Mary G
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20.1K Posts
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February 13th, 2009 14:00
Seems like your hard drive is failing. Backup your files and replace it. You could run CHKDSK /R to see if repairs can be made.
husky0894
1.6K Posts
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February 13th, 2009 16:00
All drives have a sophisticated error checking and recovery algorithm built into the logic board - when the drive senses for example that more sectors are going bad, it calls spare sectors into use - too many and it'll report it's near failure.
Like the check engine light there are varying degrees of severity - consider a warning passed to the system to be the equivalent of a flashing check engine light - that is, that catastrophic damage is on the way.
LowFatSoftware
5 Posts
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February 13th, 2009 16:00
Thanks for your response. I ran a CHKDSK and have 0 errors or warnings.
Does anybody know how the Server Administrator / SAS 5/iR Adapter determines that a failure is predicted? I don't want to chance losing data, but I decided not to replace the engine on my Ford pickup after the Check engine light came on and no mechanic could explain it. The truck is still running after 6 years.
pcmeiners
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1.8K Posts
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February 14th, 2009 06:00
You got away with the Ford's engine light, but luck has a habit of running out; predictive failure alerts are more serious then your average car engine alert.
The disk is on cortisone. It may last 5 hours or 5 years, heavily leaning to the lesser. If you want to chance it, I would advise monitoring the array very carefully.
LowFatSoftware
5 Posts
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February 17th, 2009 14:00
Thanks for your input everybody. I placed my order for a replacement drive...
--Ted
JOHNADCO
2 Intern
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847 Posts
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February 23rd, 2009 14:00
All of us have that fleeting thought of leaving a predicted drive failure drive in plce till it fails. Most all of us, just bite the bullet and replace the drive if the system is at all in true production. :)
matthewroth
12 Posts
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February 25th, 2009 12:00
i would also check for an update to the hard drives firmware. once a predictive failure has occurred it has to be rebuilt (either same or new drive)
and then the drives should have any updates applied as well.