On 12/16/21 12:41, dmitri maziuk wrote:
What kind of drives? In what kind of chassis?
If I were setting this up from scratch, I'd go with a ZFS raidz-1 on 3
drives and a (large-ish) SSD in the 4th slot for ZFS write cache and job
spool. Unless there's 5th disk: system, in which case I'd use an SSD
there as well and put ZFS write cache on that instead.
That is ALMOST exactly what I am doing. I have four rotating sets of
1TB drives set up as a ZFS pool in an external hot-plug SATA chassis, as
the destination pool for my archive copy jobs. Media change is as
simple as this:
# zpool export arcpool
[physically swap drives]
# zpool import arcpool
# rm /arcpool/*
All four sets of drives have the same ZFS pool name, so it all Just Works.
--
Phil Stracchino
Babylon Communications
ph...@caerllewys.net
p...@co.ordinate.org
Landline: +1.603.293.8485
Mobile: +1.603.998.6958
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