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тАО02-25-2010 01:45 PM
тАО02-25-2010 01:45 PM
I have a SAS 10k disk that was a RAID 1 pair in a DL380. One disk died and we took out the mirror and we are trying to boot it on a bl460c blade. disk had a bootable version of Solaris 10 u7.
If i understand it correctly, both the rack and the blade have the same P410i controller. We were able to mount the disk as a partition on Solaris but we want to boot from it. Currently we are unable to boot from it.
ANy ideas/pointers to how we can boot into the original Solaris from this disk?
Solved! Go to Solution.
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тАО02-26-2010 06:57 AM
тАО02-26-2010 06:57 AM
SolutionUnless you do something wrong.
All smart array controllers are data compatible, between generation.
But they are not driver compatible between generations.
To avoid doing something wrong, you should know aboute the Smart Array controller (SA).
The SA, store the configuation, on all disks in the RIS area of the disks, as metadata.
It all information aboute, RAID level, status and posistion of the physical disks. And it's time stamped.
If you want to remove 1 disk from a pair - Shut down and power off the server.
If you want to put it in another server - Do maintain correct posistion.
If you have a failed or missing disk in a RAID 1. The SA will be in interim recovery mode, unless you select otherwise.
Wich mean, when you put in another good disk in the posistion of the failed/missing disk, it will start rebuild.
It will only rebuild to that physical posistion.
Example:
You've got a server with 2 disks.
Disk 0 and disk 1.
You want to boot 1 of the disks in another server.
shutdow/Powerdown, and remove disk 1.
Put it in bay 1 in the other server.
Leave Bay 0 empty.
Power on, and it will come up in interim recovery mode and boot just fine.
If you put disk 1 in bay 0, it will get confused.
Why didn't you leave the OK disk in the DL380, and replaced the failed disk?
BR
/jag
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тАО02-26-2010 11:28 AM
тАО02-26-2010 11:28 AM
Re: Boot SAS disk with broken RAID 1 pair - Solaris 10 u7
unix/linux use a hardware path to the disks.
pci bus, device no on the bus. cahannel on the scsi bus, and device ID.
It is likely to be different between the two server models.
So you will have to correct that somewhere in the oprating system.
BR
/jag
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тАО02-28-2010 09:44 PM
тАО02-28-2010 09:44 PM
Re: Boot SAS disk with broken RAID 1 pair - Solaris 10 u7
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тАО03-04-2010 05:43 AM
тАО03-04-2010 05:43 AM
Re: Boot SAS disk with broken RAID 1 pair - Solaris 10 u7
But it could be corrupted.
Good thing you got it to work.
BR
/jag