Date: Fri, 20 Nov 2009 11:18:24 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Tom Evans <tevans.uk@googlemail.com> Cc: freebsd-stable@freebsd.org, Stefan Bethke <stb@lassitu.de> Subject: Re: whats best pracfive for ZFS on a whole disc these days ? Message-ID: <200911201118.26242.doconnor@gsoft.com.au> In-Reply-To: <2e027be00911190444s1ce5f297o9064bb9c0d28ef30@mail.gmail.com> References: <E1N2NcA-0004c4-CE@dilbert.ticketswitch.com> <200911192305.35337.doconnor@gsoft.com.au> <2e027be00911190444s1ce5f297o9064bb9c0d28ef30@mail.gmail.com>
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On Thu, 19 Nov 2009, Tom Evans wrote:
> On Thu, Nov 19, 2009 at 12:35 PM, Daniel O'Connor
<doconnor@gsoft.com.au>wrote:
> > On Thu, 19 Nov 2009, Marius Nünnerich wrote:
> > > > operator 0, 164 Oct 21 15:34
> > > > /dev/gptid/6866d8b0-a8ac-11de-8e07-00241dd192cc
> > >
> > > Have you tried naming the GPT partitions and using /dev/gpt/* ?
> >
> > Nope, how would I do that?
> >
> > I'd be surprised if it worked TBH..
>
> Use the -l flag to gpart when creating the partitions. I'm not sure
> if there is a way to label them after the fact. I found it led to a
> much more descriptive/reliable pool, as I can plug the disks in
> anywhere and get the same results:
Descriptive yes, reliable no (IMO :)
UUIDs should always be more reliable so long as the "UU" part of their
name holds true :)
No reason you couldn't have both thought.
> pool: tank
> state: ONLINE
> scrub: none requested
> config:
>
> NAME STATE READ WRITE CKSUM
> tank ONLINE 0 0 0
> raidz1 ONLINE 0 0 0
> gpt/samsung15-1 ONLINE 0 0 0
> gpt/samsung15-2 ONLINE 0 0 0
> gpt/samsung15-3 ONLINE 0 0 0
> gpt/samsung15-4 ONLINE 0 0 0
> gpt/seagate15-1 ONLINE 0 0 0
> gpt/seagate15-2 ONLINE 0 0 0
>
> I use the geom name 'gpt/foo' when referring to the disks in zpool.
> All works perfectly.
Hmm I did..
[midget 11:13] ~ >sudo gpart modify -i 2 -l "Midget-ZFS-1" ad4
ad4p2 modified
[midget 11:15] ~ >sudo gpart show -l ad4
=> 34 1953525101 ad4 GPT (932G)
34 8388608 1 (null) (4.0G)
8388642 1944059904 2 Midget-ZFS-1 (927G)
1952448546 1076589 - free - (526M)
but I get no /dev/gpt directory..
[midget 11:14] ~ >ls -la /dev/gpt
ls: /dev/gpt: No such file or directory
Maybe the UUID label got their first so it won't have an alias (although
the UUID is an alias for /dev/ad4p2..)
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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