I'm considering putting together a NAS with the following parts.
Pentium G3220 (ARK states it has ECC support)
ASRock E3C224
8GB ECC
2x Old Seagate 1.5TB (by old, I mean 2008-vintage)
2x New Cheapest 2TB drives I can get (basically the same price as 1.5TB drives these days)
I had previously been running the old HDDs in a manual mirror in my main computer, but spun down most of the time. My main concern is covering for their age.
As such, would a RAIDZ1 with a hot spare or a RAIDZ2 be better in this regard? I think the main argument against the Z1 hot spare is worries of a correlated failure of the two older drives during a resliver, and typing this out leans me towards the Z2.
Pentium G3220 (ARK states it has ECC support)
ASRock E3C224
8GB ECC
2x Old Seagate 1.5TB (by old, I mean 2008-vintage)
2x New Cheapest 2TB drives I can get (basically the same price as 1.5TB drives these days)
I had previously been running the old HDDs in a manual mirror in my main computer, but spun down most of the time. My main concern is covering for their age.
As such, would a RAIDZ1 with a hot spare or a RAIDZ2 be better in this regard? I think the main argument against the Z1 hot spare is worries of a correlated failure of the two older drives during a resliver, and typing this out leans me towards the Z2.