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тАО08-24-2010 10:30 AM
тАО08-24-2010 10:30 AM
How do you rebuild your SAS mirror from the OS
We are running hpux 11.31, with internal SAS drives.
I see how to check if the internal hardware mirror is mirrored or not, but do not know how to actually resync the mirror.
This is what I get when I check to see if the disks are mirrored;
sasmgr get_info -D /dev/sasd1 -q raid
Tue Aug 24 14:29:13 2010
---------- LOGICAL DRIVE 1 ----------
Raid Level : RAID 1
Volume sas address : 0x5387b27e4c7c46f
Device Special File : /dev/rdsk/c0t0d0
Raid State : OPTIMAL
Raid Status Flag : ENABLED
Raid Size : 139898
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %
Participating Physical Drive(s) :
SAS Address Enc Bay Size(MB) Type State
0x5000c50017be7dbd 1 2 140014 SECONDARY ONLINE
0x5000c50017bfa765 1 1 140014 PRIMARY ONLINE
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тАО08-24-2010 11:38 AM
тАО08-24-2010 11:38 AM
Re: How do you rebuild your SAS mirror from the OS
Hope this helps!
Regards
Torsten.
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тАО08-25-2010 03:29 AM
тАО08-25-2010 03:29 AM
Re: How do you rebuild your SAS mirror from the OS
You do not need to do anything to resync or rebuild the drives. This will be taken care by the controller to which these disks are connected.What RAID controller do you have?
Even on a failure of a disk, you just have to replace the failed disk and the rebuild will be taken care by the controller when the disks are in a RAID configuration. Ofcourse there are limitations on the number of disks that can fail at a given point.
Regards,
Clarete
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тАО08-25-2010 03:52 AM
тАО08-25-2010 03:52 AM
Re: How do you rebuild your SAS mirror from the OS
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО08-25-2010 06:14 AM
тАО08-25-2010 06:14 AM
Re: How do you rebuild your SAS mirror from the OS
It wasn't until I went into the EFI and told the mirror to resync that I saw the mirror actually rebuilding.
Have any of you had your SAS drives replaced and the controller resynced the mirror? It didn't work for me automagically.
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тАО08-25-2010 06:28 AM
тАО08-25-2010 06:28 AM
Re: How do you rebuild your SAS mirror from the OS
The output with a bad disk:
> sasmgr get_info -D /dev/sasd0 -q raid
---------- LOGICAL DRIVE 5 ----------
Raid Level : RAID 1
Volume sas address : 0x9ad0b09c94c1234
Device Special File : /dev/rdsk/c1t0d0
Raid State : DEGRADED
Raid Status Flag : ENABLED
Raid Size : 69878
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %
Participating Physical Drive(s) :
SAS Address Enc Bay Size(MB) Type State
0x500000e014b31234 1 7 70007 PRIMARY ONLINE
0x500000e014b31234 1 8 70007 SECONDARY MISSING
Disk replaced and sync has started automagically:
# sasmgr get_info -D /dev/sasd0 -q raid
---------- LOGICAL DRIVE 5 ----------
Raid Level : RAID 1
Volume sas address : 0x9ad0b09c94c1234
Device Special File : /dev/rdsk/c1t0d0
Raid State : DEGRADED
Raid Status Flag : ENABLED RESYNC IN PROGRESS
Raid Size : 69878
Rebuild Rate : 0.00 %
Rebuild Progress : 23.18 %
Participating Physical Drive(s) :
SAS Address Enc Bay Size(MB) Type State
0x500000e014b31234 1 7 70007 PRIMARY ONLINE
0x5000c50006671234 1 8 70007 SECONDARY ONLINE
after the rebuild the RAID was again OPTIMAL.
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО08-25-2010 09:31 AM
тАО08-25-2010 09:31 AM
Re: How do you rebuild your SAS mirror from the OS
I did have some errors in the syslog.log, but can't post them as I am not at my server.
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тАО08-25-2010 08:09 PM
тАО08-25-2010 08:09 PM
Re: How do you rebuild your SAS mirror from the OS
Raid State : OPTIMAL
Raid Status Flag : ENABLED
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО08-26-2010 06:16 AM
тАО08-26-2010 06:16 AM
Re: How do you rebuild your SAS mirror from the OS
This was in my syslog prior to going into the EFI;
Aug 24 08:54:16 vmunix: SAS driver at 0/2/1/0 (/dev/sasd1) : RAID volume at SAS address 0x05389f50e4c7a036 is in a degraded state.
Aug 24 08:54:32 vmunix: SAS driver at 0/2/1/0 (/dev/sasd1) : RAID volume at SAS address 0x05389f50e4c7a036 is in a degraded state.
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тАО08-26-2010 06:23 AM
тАО08-26-2010 06:23 AM
Re: How do you rebuild your SAS mirror from the OS
0x05389f50e4c7a036
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
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