Disk failure within a RAID 1 array.

[Joost Waversveld]

Sometimes it is possible that just the controller generates an error and 
causes a disk fail. This does not  always mean that the disk is corrupt.
So it is always an good idea to try to repair the disk, but (!) you have 
to be very carefull with this server. If the hard disk fails again, just 
replace the disk as soon as possible!

Joost

Chase Bolt wrote:
> Replace the disk. Why are you trying to rebuild the array on a disk that 
> its failure predicted = yes? Once you replace the disk with a good one, 
> the raid will automatically rebuild.
>
>
> Martin Duchval wrote:
>   
>> Hi,
>>
>>
>>
>> We had a problem with disks on a PE 1950 : The orange led is blinking.
>> So I installed srvadmin-all 5.5 for my system (RHEL 5.3).
>>
>> I can indeed see that I have a trouble with a disk :
>> ______________________________________________________________________
>> omreport storage controller
>>  Controller  PERC 5/i Integrated (Embedded)
>>
>> Controllers
>> ID                                            : 0
>> Status                                        : Non-Critical
>> Name                                          : PERC 5/i Integrated
>> Slot ID                                       : Embedded
>> State                                         : Degraded
>> Firmware Version                              : 5.0.2-0003
>> Minimum Required Firmware Version             : 5.2.1-0067
>> Driver Version                                : 00.00.03.15-RH1
>>
>> Minimum Required Driver Version               : 00.00.03.20
>> Number of Connectors                          : 2
>> Rebuild Rate                                  : 30%
>> BGI Rate                                      : 30%
>> Check Consistency Rate                        : 30%
>> Reconstruct Rate                              : 30%
>> Alarm State                                   : Enabled
>> Cluster Mode                                  : Not Applicable
>> SCSI Initiator ID                             : Not Applicable
>> Cache Memory Size                             : 256 MB
>> Patrol Read Mode                              : Auto
>> Patrol Read State                             : Stopped
>> Patrol Read Rate                              : 30%
>> Patrol Read Iterations                        : 110
>> Abort check consistency on error              : Not Applicable
>> Allow Revertible Hot Spare and Replace Member : Not Applicable
>> Auto replace member on predictive failure     : Not Applicable
>> Load balance                                  : Not Applicable
>> ______________________________________________________________________
>> ______________________________________________________________________
>>
>> omreport storage pdisk controller=0 pdisk=0:0:0
>> Hard Disk 0:0:0 on Controller PERC 5/i Integrated (Embedded)
>>
>> Controller PERC 5/i Integrated (Embedded)
>> ID                        : 0:0:0
>> Status                    : Non-Critical
>> Name                      : Physical Disk 0:0:0
>> State                     : Online
>> Failure Predicted         : Yes
>> Progress                  : Not Applicable
>> Type                      : SAS
>> Capacity                  : 33.38 GB (35836133376 bytes)
>> Used RAID Disk Space      : 33.38 GB (35836133376 bytes)
>> Available RAID Disk Space : 0.00 GB (0 bytes)
>> Hot Spare                 : No
>> Vendor ID                 : DELL
>> Product ID                : MAX3036RC
>> Revision                  : D206
>> Serial No.                : DRL3P6B00TBU
>> Negotiated Speed          : Not Available
>> Capable Speed             : Not Available
>> Manufacture Day           : 03
>> Manufacture Week          : 48
>> Manufacture Year          : 2006
>> SAS Address               : 500000E0139299F2
>> ______________________________________________________________________
>>
>>
>> So I tried to rebuild the faulty disk :
>> ______________________________________________________________________
>> omconfig storage pdisk action=rebuild controller=0 pdisk=0:0:1
>> Operation disabled. Read, action=rebuild
>> .Refer to the documentation for more information.
>> ______________________________________________________________________
>> But the command seems to be all right according to the documentation.
>> ______________________________________________________________________
>> omconfig storage pdisk -?
>> [...]
>> action=rebuild
>>     Required parameters are:
>>         controller=id
>>         pdisk=<PDISKID>
>>     where PDISKID=<connector:enclosureID:portID | connector:targetID>
>> rebuilds the given physical disk
>> [...]
>> ______________________________________________________________________
>>
>> What should I do to correct this error ?
>>
>>
>> Thank you,
>> Michel
>>
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>>   
>>     
>
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>   

-- 
Joost Waversveld

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