Hi Peter,
you're talking V-Series on the one hand and "disks" on the other.
Are you trying to create aggregates from
a) physical NetApp disks attached to a V-Series controller, or
b) LUNs from a 3rd-party array that happen to be 2TB in size?
Generally go with the defaults.
For a) it's 14 disks per RAID-DP Raid Group
This can be increased to 16 so as an example you could go with the following:
- for 132 disks that would result in 8 Raid Groups with 16 disks and 4 spares (~181 TB usable)
- for 156 disks that's 10 RGs with 15 disks and 6 spares (~210 TB usable)
For b) the default RG size is 8 but has no special meaning as there is no raid calculation for 3rd-party LUNs, just a RAID0 striping. The RG size doesn't have any effect on this and spares are not required - well, at least not of that size.
regards, Niels