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I built my most-recent ZFS pool on 2x18 drives, mirroring pairs "crossed" across drives. The SAS models are easier to work with because they present as two LUNs
by mwpmaybe 2y ago
I built my most-recent ZFS pool on 2x18 drives, mirroring pairs "crossed" across drives. The SAS models are easier to work with because they present as two LUNs. Wendell from Level1Techs wrote some scripts (easy to find on the L1T forum) to make it easier to split up the SATA models into two partitions that can then be used as mostly-independent "logical units."
In general I've been happy with it but buying the drives new probably wasn't worth the cost. ServerPartDeals has refurbished SATA drives for $210 and that's an attractive price. It's great for smaller deployments where you might have a limited number of 3.5" drive slots available but need to hit certain sequential throughout and IOPS numbers.
Of course used enterprise SSDs are probably a better choice if you can find a good deal and buy extra redundancy.