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882
July 19th, 2018 13:00
PowerVault MS1220
We're needing to add storage to our PV MD122.
We currently have 16 300-GB drives in RAID5 as one volume.
Can I add 4 1-TB drives in RAID5 to the same PERC H800 adapter as a new volume, or do I need to add 8 more 300-GB drives and expend the current volume?
Thank you for your help.
~ Michael
DELL-Sam L
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July 20th, 2018 06:00
Hello Michael,
You can add 4 new drives to your MD1220 and create a new virtual disk. You can also add drives and expand your virtual disk. Once the drives are inserted you can use Open Manage or the controller bios to create your new virtual disk.
Please let us know if you have any other questions.
msenior777
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July 20th, 2018 12:00
Thank you, Sam.
With the 16 drive array as the current D: drive, if I added 4 drives to create a new disk, can that new disk expand D:'s space, or would I have to have the new space allocated as a new drive?
Dev Mgr
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July 20th, 2018 14:00
It typically couldn't expand D:'s space unless you go dynamic disk, but you really want to avoid that.
If you want to expand D's space, add 300GB drives (maybe 450's or 600's if you cannot find any more 300's (note that you'll only be able to use 300GB on those drives)) and then expand the raid set using Dell OpenManage Server Administrator (you cannot expand the raid set in the PERC BIOS).
1TB drives might work, but 300GB drives are probably 10k or 15k, and 1TB drives are most likely 7200rpm at best, so it would slow everything down. Also note that you cannot mix SAS and SATA drives in a single raid set, so if the 1TB drives are SATA, you can definitely not add them to the existing raid set (unless those somehow are also SATA (and therefor 7200 rpm). If your 1TB drives are Near-line SAS, then you can add them to a raid set with SAS drives if I'm not mistaken.
Edit: typo
DELL-Sam L
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July 23rd, 2018 07:00
Hello Michael,
As Dev Mgr stated you can’t mix SAS and SATA drives in the same virtual disk. If the drives are the same type, then you still would not want to add them to your virtual disk as you are losing bout 600gb of space per drive. If you are going to expanding your D: drive then as Dev Mgr stated should try finding some smaller drives.
Please let us know if you have any other questions.