I'm looking to replace an aging P2000 G3 SAS with a MSA 2052 SAS. The P2000 has a wild mix of drives assembled over 10 years in 24 SFF + 25 SFF add-on shelf. It's been flawless. Never a support issue. Rarely a drive failure even though many of the drives have been refurbs.
For the 2052 I'm looking at adding 3 x 800GB SDD + 17 2.4TB HDD to have two identical volumns of with auto-tiering:
- 2 x 800GB SSD RAID 1 (Performance tier)
- 8 x 2.4TB HDD RAID6 (Other tier)
And 1 spare of each type.
Does this sound Ok? Any compelling reason to go 8 x 2.4TB RAID10? Total capacity isn't critical, nor is performance as 800GB RAID1 x 2 is enough to handle all of the hot data in the systems (10-15 VMs).
Is there sufficient risk of a failure during a RAID6 rebuild of a 8x2.4TB array to make avoiding it worth considering?