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Expanding Perc H700 Raid 5 - Server 2012 boot disk
Poweredge T420 with PERC H710. Currently 3x1TB drives in RAID 5. Looking to add 1 additional 1TB drive into the array. Simple enough to do in OMSA - reconfigure the VD to include the new drive.
Possible difficulty/questions - This is the primary/boot/only disk in the system. OS is Server 2012. Can this operation be done "online" through OMSA while the OS is running? And, will the OS see the new size (~3TB)? Currently the OS sees the current VD as 2.73GB and I see conflicting information of 2TB limit on MBR volume (which this is), except possibly if it's RAID, but can't find an explanation of the except if RAID part.
Just would rather figure this out ahead of time than after hitting the GO button....
theflash1932
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August 10th, 2014 22:00
Yes, this can be done from OMSA while the OS is online and running.
As to the 2TB limit, RAID is NOT a factor:
So, you will have an issue here expanding the VD. You might be better off adding a disk(s) in a separate VD (separate "disk"), then moving data to it.