Adding Drives to RAID 5 - IBM System x3650
Posted on 2012-08-23
I have an x3650 with mirrored drives for the OS and HyperV host and a RAID 5 of 4 drives for my VHDs. I have two extra drives. What would be a best/recommended practice ?
1. Add the drives to the RAID 5 through the ServerRAID Manager (gui) ? I've got about 30GB of VHDs, so that would take several hours to build up the new RAID 5.
2. Save the VHDs, blow away the existing RAID 5, create a new one with the two extra drives, and copy the VHDs back ?
3. Set up the new drives as hot spares ?
The RAID 5 presently has 4 drives. I'm assuming I'll get a bit of performance gain adding two more drives to the RAID 5. A RAID 10 is also possible, but I'm more interested in performance than the best redundancy at this time.