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тАО02-25-2010 10:11 AM
тАО02-25-2010 10:11 AM
Default config has two mirrors - 3,4,5 in one, and 6,7,8 in another, striped together. I would like to have 3 mirrors. 3,4 mirror, 5,6 mirror, 7,8 mirror, striped together. I can't seem to find a way to do this in the Array config software, no matter which way I access it (f8 on startup, booting with the CD in, or running array config in Windows)
Can someone tell me if this is possible?
Solved! Go to Solution.
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тАО02-25-2010 11:04 AM
тАО02-25-2010 11:04 AM
SolutionI think what you want is already configured.
HP controllers only support RAID 10 not RAID 0+1.
RAID 10 is dual tier RAID, where RAID 1 is configured first so mirror of 3,4, mirror of 5,6 and mirror of 7,8 would be created.
then the controller will create RAID 0 on three hard drive blocks (3+4), (5+6) and (7+8).
If HP is not creating RAID 10 in this manner then that would be a major breach of RAID standards
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тАО02-25-2010 11:16 AM
тАО02-25-2010 11:16 AM
Re: DL380G6 RAID 10 with 6 spindles
Good News
HP indeed implements the RAID 10 as you want.
Refer the following document:
http://docs.hp.com/en/J6369-90050/ch02s03.html
Therefore, You should have the desired configuration right now.
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тАО02-25-2010 12:39 PM
тАО02-25-2010 12:39 PM
Re: DL380G6 RAID 10 with 6 spindles
Group 1 is 3,4,5
Group 2 is 6,7,8
I arranged the drives so that no two manufacturing dates were together, based on a pairing of disks 3,4; 5,6; 7,8. Mostly to be safe with separating disks from the same batches. Will I still be safe with how I've arranged them? it's possible that I've put two drives with the same batch in either group 1 or 2, because I was not thinking of the arrangement that way.
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тАО02-25-2010 12:58 PM
тАО02-25-2010 12:58 PM
Re: DL380G6 RAID 10 with 6 spindles
Seperating hard drives batch was a really nice thought.
Don't worry about hard drive placement now, as you have correctly took the precaution and put hdd of two different lot in a mirror group.
Let's assume if all the hard drives of single batch fails at same time even then you will have at least one working hard drive in each mirror set (3,4); (5,6); and (7,8).
Be it 3,6,7; 3,6,7; 4,5,7 or so on.
In a nutshell you concepts are right and you have correctly deployed the RAID 10 solution with available hard drives.
You can Refer to following article for a brief difference between RAID 10 and RAID 01
That should be helpful
http://decipherinfosys.wordpress.com/2008/01/15/difference-between-raid-01-vs-raid-10/
Regards,
Tarun
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тАО02-25-2010 01:05 PM
тАО02-25-2010 01:05 PM
Re: DL380G6 RAID 10 with 6 spindles
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тАО02-25-2010 01:05 PM
тАО02-25-2010 01:05 PM