I am testing performance with SQLIO on clustered storage spaces. Drive counts in each of my enclosures are limiting my column counts as it relates to Vdisk design. I am trying to justify buying more drives to increase column count and performance.
Right now I have 4 vdisks with a column count of 2 on each of them. I am confused about the -o parameter and how I should set it up in relation to column count.
My thinking was that 2 column on a read workload the sqlio -o parameter should be set to 4 and a vdisk with column count of 4 -o parameter should be set to 8. Can anyone verify this?
This is what I am running now on 2 column spaces.
.\SQLIO.EXE -s30 -kR -frandom -b8 -t8 -o4 -LS -BN \\SMB\VDisk1\testfile.dat
Thanks for your time.