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Intel RAID10 trying to identify which drives are mirror drives

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April 4, 2014 5:58:20 PM

I have a 4-disk RAID10 volume managed by Intel's on-board controller and want to downgrade to a 2-drive raid. My plan is to remove the two mirrored drives, make them into a RAID0 volume, and migrate the data. The trouble I have is identifying which of the disks are the mirrored disks. There are no indicators in the IRST management software, and I can't tell if data is stripped across disks 1 & 2 and mirrored in 3 & 4 or stripped across 1 & 3 and mirrored in 2 & 4.

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a c 311 G Storage
April 5, 2014 9:37:12 AM

I wouldn't try to remove two drives from that set anyway. It's too risky to play with adding / removing / upgrading drives in a RAID. My advice is
1) Get an external drive
2) Do a backup to it
3) Verify the backup.
4) Break the RAID and scrub the drives
5) Build a new, empty RAID and restore to it.
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April 5, 2014 4:00:18 PM

WyomingKnott said:
I wouldn't try to remove two drives from that set anyway. It's too risky to play with adding / removing / upgrading drives in a RAID. My advice is
1) Get an external drive
2) Do a backup to it
3) Verify the backup.
4) Break the RAID and scrub the drives
5) Build a new, empty RAID and restore to it.


Thanks, it's a 6TB volume and I only have 2TB of external storage. I can't afford any additional HDD's and all my critical data is already backed up. There's about 3-4TB of non-critical tv recordings that I'd prefer to keep but maybe I'll take a risk and guess at which two are the mirrored drives.
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