If possible, place the SSD on a separate stack.
(loops were FC, SAS is Stack)
Create a "storage pool" which will effectively take all the SSDs and create 4 partition slices (one slice across all SSDs)
You can then assign each slice (using RAID-4 instead of DP saving parity overhead and giving more cache) to an AGGR.
If you need to attach to more than 4 aggrs, then create two storage pools. One with 6 SSDs and one with 5 SSDs.
That will give you eight slices to divide up how you see fit. You can add more than one slice to an AGGR.
Once you add a storage pool to an AGGR (which makes it a FlashPool) the only way to remove the SSDs from the AGGR is to destroy the AGGR.
Be sure of what you do. Fast-Zero does not hit ONTAP until 9.4 and the 6290 can run at most, I believe 9.1Pxx
--tmac
Tim McCarthy, Principal Consultant