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The good news is that you have two raid sets. You can't do anything (add / remove disks) with a failed raid set except get it back to a protected state.

I wouldn't want to be moving the ASPs around until you are back protected. Are you putting new disks in there to replace the failing disks and then rebuilding the raid set, or are you just rebuilding the raid set?

Pete

--
Pete Massiello
iTech Solutions
http://www.itechsol.com
http://www.iInTheCloud.com




-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Paul Raulerson
Sent: Wednesday, November 13, 2013 1:12 AM
To: Midrange Systems Technical Discussion
Subject: DASD Configuration

Well, DASD configuration on this 820 is driving me to drink. :)

Display Disk Hardware Status

Serial Resource Hardware
ASP Unit Number Type Model Name Status
1 1 68-0C8B55D 6718 070 DD004 RAID-5/Unprotected
1 2 02-8AD7A 6718 074 DD001 RAID-5/Unprotected
1 3 68-265DA 6718 074 DD011 RAID-5/Failed
1 4 68-01787B5 6718 074 DD003 RAID-5/Unprotected
1 5 75-0D91248 6718 074 DD002 RAID-5/Unprotected
1 6 75-0D8D709 6718 074 DD005 RAID-5/Failed
1 7 02-4AC80 6718 070 DD008 RAID-5/Unprotected
1 8 75-0D91FE2 6718 074 DD006 RAID-5/Unprotected
1 9 02-910CE 6718 074 DD010 RAID-5/Unprotected
1 10 68-0DD6277 6717 050 DD007 Operational
1 11 02-91164 6718 074 DD009 RAID-5/Unprotected




Press Enter to continue.

F3=Exit F5=Refresh F9=Display disk unit details
F11=Display disk compression status F12=Cancel

In the screen above, it is easy to see there are two failed units and the raid is just not started or running. This is obviously not good, even though the system IPLs and runs quite happily.

I am sure the system will have to be reloaded yet again to straighten this out, but standalone service tools still doesn't let me straighten this out.

What I would like to do is take half the disks to use as a load source and the other half as a separate ASP. I went through the 4.5 load manual, and tried most of what it suggested, but I have not been able to remove those drives from the unprotected raid array and do something with them. Nor have I been able to do anything with disk DD011, and not I see that DD005 is also claiming to be failed.

What would you guys do?

I was able to tell the system to rebuilt DD005-

Rebuild Disk Unit Data

Rebuilding the data on these disk units has started. You can
monitor the progress from this screen. The service action has
completed and the rebuild will run without intervention.

Press Enter to continue.
Press F5=Refresh to update the status.

Parity Serial Resource
Set ASP Unit Number Type Model Name Status
2 1 6 75-0D8D709 6718 074 DD005 1 % Rebuilt



Which leads to this:

Display Device Parity Status

Parity Serial Resource
Set ASP Unit Number Type Model Name Status
1 10-1158172 2748 001 DC01 RAID-5
1 4 68-01787B5 6718 074 DD003 Unprotected
1 5 75-0D91248 6718 074 DD002 Unprotected
1 2 02-8AD7A 6718 074 DD001 Unprotected
1 3 68-265DA 6718 074 DD011 Failed
2 10-1158172 2748 001 DC01 RAID-5
1 8 75-0D91FE2 6718 074 DD006 4 % Rebuilt
1 1 68-0C8B55D 6718 070 DD004 4 % Rebuilt
1 9 02-910CE 6718 074 DD010 4 % Rebuilt
1 11 02-91164 6718 074 DD009 4 % Rebuilt
1 7 02-4AC80 6718 070 DD008 4 % Rebuilt
1 6 75-0D8D709 6718 074 DD005 4 % Rebuilt


The six drives in raid set 2 will rebuild and go into a protected state, but as soon as an IPL occurs, it will go back to the state you saw in the first screen.

This is terribly frustrating .... (!)

-Paul

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