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OMSM : Patrol Read found an uncorrectable media error.: Physical Disk 1:0:7 Controller 0, Connector 1

Posted on 2015-02-02
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Last Modified: 2016-11-23
The OS (CEntOS5) is throwing this error but my Dell OpenManage Server Administrator (v7.4.0) isn't showing any issues (see attached)..

What should I do?

OMSM : Patrol Read found an uncorrectable media error.: Physical Disk 1:0:7 Controller 0, Connector 1

Name	PERC 5/i Integrated
State	Ready
Firmware Version	5.2.2-0072
Driver Version	00.00.06.15-rh1
Number of Connectors	2

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Screenshot-Dell-OpenManage-.png
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Question by:Geoff Millikan
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by:Rob_Jeffrey
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It may be a punctured array.  If it is, a rebuild may be necessary.
http://en.community.dell.com/support-forums/servers/f/906/t/19407608

Are there any further details in the OpenManage about the individual physical disks?
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by:Geoff Millikan
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That thread shows the array was throwing a lot of errors in logs (not sure which logs?).

Per attached, array consistency check comes back clean...

Thoughts?GUI
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by:Rob_Jeffrey
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I'm not sure.  Having conflicting information from two supposedly reliable sources is not very comforting.

I would take this as an indication as a potential failure in hardware and perform a full backup at the very least.  Depending on the importance of the services running on the system would dictate if I would proceed to replace hardware preemptively or take the chance with possible failure.

The information I've found on RAID punctures has indicated that the only repair is to rebuild the array.  I'm not sure how to rule that out to avoid the labor if that isn't the situation.
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by:Geoff Millikan
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I just can't make the leap from this simple "uncorrectable media error" to the super-serious punctured array diagnosis.  I haven't received any fresh errors since February thus the server has remained online as-is.

Any additional thoughts here?
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Rob_Jeffrey earned 500 total points
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Without additional information it is difficult to ascertain.
The possibility remains that you are operating a deteriorating array.  This may not affect files or just affect a few files which you haven't encountered during it's recent operation.
I would reach out to Dell for support depending on the nature of the server - or simply operate the system as is - relying on backups if it becomes more serious.
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