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What could cause a disk failure in an array that is only 6 months old?

Posted on 2009-07-07
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Last Modified: 2012-05-07
We are running a Dell Poweredge 2800 with a RAID 5 scsi array. The server itself is out of warranty; however, the disk array was completely replaced 6 months ago. Last month we experienced a degraded disk and now this month we have had another disk degrade. What could be making this happen? Could it be the controller going bad? Or is it just that the system needs to be retired?
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Question by:DurWayIT
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by:regnighc
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Power Surge problems maybe, do you have a UPS?
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by:DurWayIT
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Yes, it is hooked into a large UPS.
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by:regnighc
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I would agree with you on that it is most probably the controller on its way out.
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by:andyalder
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Maybe it just needs the firmware on the storage controller and disks upgraded.
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by:rindi
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Have you checked on overheating? Servers usually have many fans inside, maybe some aren't running. Also HD's, particularly fast SCSI disks, generate a lot of heat, so if one or more fans aren't running, your disks could be getting too hot.

Also what types of disks are they? If this is an older server you may have replaced the disks with others that aren't completely new. Particularly smaller disks can be hard to get...
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by:DurWayIT
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The disks were upgraded 6 months ago. Prior to this, this server was the only one for the entire company. Since the upgrade, the load has been greatly reduced. AD, DNS, and file storage are the only things running on the box. Everything else was off loaded to other servers.
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by:DurWayIT
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All the disks in the array are all the same size and speed as well as the two recent replacements.
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gurutc earned 500 total points
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Hi,

So when the disks were upgraded, was the latest firmware installed on them?  Sometimes we've gotten replacement disks that didn't have the latest firmware.

- gurutc
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by:DurWayIT
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I'll give that a try. I had not thought of that.
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