Hi,
I use one datastore per LUN as well, for reasons of clarity . But don't know why you shouldn't use more datastores per LUN.
aetius1980 wrote:
If I wanted to tier out my storage for different applications, replication and backup purposes, I take it's generally advised to do this at the LUN level?
Yes I would do it at LUN level, by creating LUNs on different kind of RAID arrays to create different performance tiers, something like for example:
Tier 1: LUNs on a RAID array of 6 SSD.
Tier 2: LUNs on a RAID array of 12 fast SAS dicsc.
Tier 3: LUNs on a RAID array of 24 SATA discs.
Tier 4: LUNs on a RAID array of 12 SATA discs.
Regards