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Proper Procedure for Moving Disks Within a CLARiiON?
Wondering if anyone knows the proper procedure to move around physical disks within a CLARiiON? Or any procedure really. These would be for disks that already contain data. So, for instance, if I had a 6 disk RAID 5 group and I wanted to move 3 of them to a different DAE how might I accomplish that best? I've swapped disks sizes and speeds before, but it would logically seem to me that a different process would be needed here. Can I just move them and have them recognized? Power down the array and move them? etc. I'm doubting that but I know many servers allow the moving around of drives and can't see why a SAN as powerful as the CLARiiON wouldn't allow it as well but I have been unable to find any documentation towards such a goal...
ruroruro
5 Posts
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October 25th, 2006 21:00
If I understand your question rightly,
1 you need to back up the data first
2 break the RAID
3 move 3 disks to other DAE.
4 make new RAID and rebind LUN
5 restore data
you cannot move around disk unless breaking RAID
csmykay1
59 Posts
1
October 26th, 2006 08:00
1. Can you afford to buy new disks?
If you can then you all you need to do is use the built in LUN migration tool in Navi that start in Flare code release 16. If you are not at LEAST at Flare code relase 16 than I recommend you upgrade.
2. If you can not buy new diks?
Then I recommend you do what the person in the above comment says to do. You can not move drives around from one DAE to another. If you do your RG will be destroyed.
Regards,
Shmac
Jeff_Tabian
5 Posts
0
October 28th, 2006 09:00
1. Backup your Exchange Data
2. Format Drives
3. Reinstall OS
4. Reinstall Exchange
5. Restore Data
As for buying additional drives its more a factor of how many different flavors there now are. Where the LUN is now is 10K 146 and all the new ones being bought are 15K. It only requires 10K so it needs to stay put just the drives physically have to move to make room for the way the new 15Ks are wished to be installed to keep a 4x5 MetaLUN all together (for simplicity/manageability/etc) well and technically to also preserve it being bound across different backend buses etc. Many reasons it would have been nice if it were easier than it is to accomplish...
csmykay1
59 Posts
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October 29th, 2006 08:00
So you have a Meta LUN bound across 2 disk shelves? If that's the case then you are stuck in a bind. However the option with LUN migration is still your best. I know it would cost the customer more money but you have to be able to convince them that this is the best solution for there needs. Also you can still purchase 10K drives
Shmac
Allen Ward
2.1K Posts
0
October 30th, 2006 07:00
If you can clarify this, there may be another solution that you haven't considered...