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3024
May 26th, 2017 13:00
mirror hard drive
I have an old PowerEdge 2950 with a PERC 5/i. It has two sets of hard drives. The mirrored set was running out of space, so I swapped one of the 30GB with a 100GB let it mirror then did the other. It worked. Went to expand the drive to use the new space, Windows doesn't recognize the new drive space. Rebooted and did a ctrl R and went into the PERC utility, it does not recognize that the new drives. It thinks the mirror is still 30 GB. How do I get the PERC utility to recognize the new drives so I can expand to the new space without rebuilding the OS?
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theflash1932
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16.3K Posts
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May 26th, 2017 17:00
You can't. The PERC 5/6 does not support expansion in this way - it supports expansion by adding drives to the array (2-disk RAID 1 to 3-disk RAID 5, 3-disk RAID 5 to x-disk RAID 5/6, etc.).
You may read about an operation called a retag, but don't do it. It is a recovery function and is NOT intended or designed to remap an array to a larger VD.
The only thing you can do now is create a new VD with the newly available space. This will be seen by Windows as a separate "disk". You could also backup, remove the small drives, put in the new ones and configure as a new RAID 1, then restore from backup.
jrjackson
2 Posts
0
May 28th, 2017 13:00
Thanks! Now I have my space
rodrigo.lequerica
5 Posts
0
August 2nd, 2021 19:00
Please help me to learn how to mirror a Laptop internal SSD (256GB) to a new disk I just bought for an update (1Tb)