Date: Sun, 12 May 2013 09:48:56 -0400 From: Outback Dingo <outbackdingo@gmail.com> To: Terje Elde <terje@elde.net> Cc: Roland van Laar <roland@micite.net>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: ZFS partitioning Message-ID: <CAKYr3zy%2Bi3eTDXj1VvBhTybojqdGRJsApF10YzRFAXx4kreB=A@mail.gmail.com> In-Reply-To: <2160B0FC-740C-4A98-8C1D-FAFD9B5C5808@elde.net> References: <518F975E.9080105@micite.net> <2160B0FC-740C-4A98-8C1D-FAFD9B5C5808@elde.net>
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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@elde.net> wrote:
> On 12. mai 2013, at 15:21, Roland van Laar <roland@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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