We have a FAS2020 with 2 controllers and 12 x 1.0Tb SATA drives with the following configuration:
Filer1 = 6 disks with Raid DP
Filer2 = 6 disks with Raid DP
HA = active/active
I have just added a DS14mk4 with 14 x 600Gb SAS disks and linked them with FC to both controllers. I plan to store databases and other fast access applications on the SAS disks as the read latency on the SATAs can be pretty poor.
I would like to maximise the amount of storage space that I have and get the best performance and reliability from our systems so I was planning to build an aggregate with all the SAS disks on one controller and rebuild a single aggregate of the SATA disks on the other.
My question is regarding the HA side of things:
If I configure the system as proposed will the HA still work or do the disks for both the internal and the storage tray need to be spread equally among the controllers?