I have 2 RAID DP aggregates with 16 drives each. I want to create a flash pool aggreagate.
I have 4 SSD drives; our vendor suggested to have just one flash pool aggregare with the 4 SSDs (to use 2+2 RAID-DP raid group with no spares) on only 1 controller.
What is best practice for creating flash pool aggreagate? Will it better to create 2 flash pool aggregate one for each controller?
It's worth to mention ONTAP 8.2.x is required to have the ability to configure RAID of SSD pool independently from the rest of the aggregate. If the system is running ONTAP 8.1.x, then it has to be RAID-DP, to follow the existing aggregate config (unless we reconfigure it to RAID-4 too).
In my view it is also debatable whether RAID-4 with a spare is better than RAID-DP with no spares.