RAID 0 & 5 instead of RAID 5 only on 5 disks
Posted on 2012-04-04
I have a RAID 5 NAS on which I run 2 VMFS volume for my NAS.
Performance is poor so I'd like to reconfigure my NAS.
What I thought is setting RAID 5 for 3 disks, putting my data on it and RAID0 on 2 other disks so I have some more performance there for more important machines.
So what I would do:
-3 disks RAID5 = 4TB (2 TB each) with my data + 1 VMFS store
-2 disks with RAID 0 = 4TB with 1 or 2 VMFS stores
VM's which should be fast, I can put on RAID0 (backing them up with VMWare Data recovery), machines for monitoring etc would come on RAID5.
RAID10 is also an option, configured that before but then when slow I don't have any option to go to/migrate slow vm to faster storage.