Tom Howarth wrote:
Can you explain why you think that RAID1 in no good, a mirror is the most performant RAID for both Read and Write IOPs, a VDI
RAID1 is only a mirror between two disks.
RAID0, 5, 6, 10 can have way more disks in an array (the max. depends on the storage vendor) to write simultaneously.
so it's a physical thing: the more disks, the more IOs...
RAID5 and 6 used to be slow(er) because of parity calculation. but with todays controllers this isn't an issue anymore...