ZFS partitioning

[Outback Dingo]

notice my boot pool is a mirror, so disk 2 is identical to disk1, so if
disk1 ever dies, logically i could boot from disk two

pool: tank
 state: ONLINE
  scan: scrub repaired 0 in 0h0m with 0 errors on Sat May 11 13:20:41 2013
config:

        NAME        STATE     READ WRITE CKSUM
        tank        ONLINE       0     0     0
          mirror-0  ONLINE       0     0     0
            da34p3  ONLINE       0     0     0
            da35p3  ONLINE       0     0     0

errors: No known data errors



On Sun, May 12, 2013 at 9:44 AM, Terje Elde <terje at elde.net> wrote:

> On 12. mai 2013, at 15:21, Roland van Laar <roland at micite.net> wrote:
>
> > I see that all the disks get the same partitions, including swap and
> boot?
> > Why is that? And do I need those 5 boot and swap partitions?
>
> You don't need them, but there's a good chance you'll want them.
>
> Long story, short version: with raidz and mirror, you survive the loss of
> a disk. If you put boot on one, and that's the disk you loose, you're up
> shit creek, having chosen not to bring a paddle. ;)
>
> It's also not a lot to loose by putting it on all of them.
>
> For swap, there's also performance-reasons.
>
> Terje
>
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