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Background Parity Initializing/Queued

Posted on 2013-10-24
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Last Modified: 2013-11-16
OK.. So at 7am I got an alert that I hot swappable  SAS drive was removed!! (no one was in at this time) It then tels me that  a new drive was inserted and it has started the rebuild, again no one  was around.. What the heck??

Rebuild completes, All fine... it then gives the Background parity initialization is currently queued or in progress (code 758) so ok... Hour and half later Its still at 0%, this is a 750 GB array. I did a phusical check on the server and saw that although the server is functioning fine, every LED is blue on the server.

I logged a case with HP, but would like opinions why the parity initialization  has not started.

server 2008 R2
Smart array P410i
ACU Version - 8.30.5.0
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Question by:BMI-IT
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8 Comments
 
LVL 27

Expert Comment

by:davorin
ID: 39597453
Do you have set rebuild priority to high?
Some have reported that this rebuild "hang" was resolved with server reboot.
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Author Comment

by:BMI-IT
ID: 39597461
rebuild priority to Medium, since this is an exchanger server its busy 95% of the time, I'm hesitant to reboot it in case it fails to come back up, never delt with the  parity initialization  taking so long before.
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LVL 27

Expert Comment

by:davorin
ID: 39597629
Similar problem is posted in this thread:
http://h30499.www3.hp.com/t5/Disk-Array/Background-Parity-Initializing-Queued/td-p/4060811#.Umk6sjLLV0w

You can try to change rebuild priority to high and see if any progress.
More the server is busy, slower will be the RAID array rebuild.
Every reboot can be risky. But normally the reboot would not have any effect on RAID array that is rebuilding except that it will start to rebuild it again.
Another risk is that you currently don't have any redundancy on your disk array. So if another disk dies or is removed from array before the array is rebuild you will have a problem.

But you can wait for a second opinion.
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Author Comment

by:BMI-IT
ID: 39597642
ok next question, can i swap out the offending disk, as it appears that the drive failed before a few days ago and then rebuild it self again!, this error was not noticed!.

given that the  Background parity initialization is still at 0 can i hot swap that drive?
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Accepted Solution

by:
BMI-IT earned 0 total points
ID: 39598148
ok.. Just got of the phone with HP.. they Saw hard read errors on the disk,  Don't how i missed them !... So we replaced the drive with a new  one and started another rebuild, one the rebuild is done, He advised a firmware update for the P410i as I'm two versions behind, and then a reboot...

so far so good..
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LVL 27

Expert Comment

by:davorin
ID: 39598974
Glad to hear that. I feel much better when an array is back in good shape.
Sorry for not being sooner back to you.
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Author Comment

by:BMI-IT
ID: 39639639
this has been resolved
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Author Closing Comment

by:BMI-IT
ID: 39653038
.
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