Robert Parkhurst wrote:
I have a question about using the `copies` option in zfs.
If I were to make a non-redundant zpool of say 3 hard drives, but set
the `copies` option to something like 2 or 3, would that protect me in
the event of a hard drive failure?
No it won't because if a drive completely fails then the pool won't
import. The copies option is to help with partial failures of a drive
but doesn't help with complete failure if there is no other redundancy
in the pool level devices.
Or would raidz be the only way to
really protect against the loss of a hard drive?
With only 3 disks then raidz is your only choice but note that you can't
boot from a raidz or a stripe only mirrors (1 or more sides) are
supported for booting from.
--
Darren J Moffat
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