Quoting Wes Morgan <morg...@chemikals.org> (from Sun, 17 Jan 2010
09:04:16 -0600 (CST)):
On Sat, 16 Jan 2010, Volodymyr Kostyrko wrote:
On Sat, 16 Jan 2010 00:29:23 +0100
Oliver Brandmueller <o...@e-gitt.net> wrote:
> Check with "zpool status" if your zpool refers to diskslices like
> "ad0s1". I use gpt have setup the ZFS mirror to refer to gptids:
>
> pool: silver
> state: ONLINE
> scrub: none requested
> config:
>
> NAME STATE
READ WRITE CKSUM
> silver ONLINE
0 0 0
> mirror ONLINE
0 0 0
> gptid/9e68d234-f306-11de-a0c4-0002b3b6e838 ONLINE
0 0 0
> gptid/a025b88c-f306-11de-a0c4-0002b3b6e838 ONLINE
0 0 0
>
> With that kind of configuration I can switch back and forth between
> using ATA_CAM or using traditional ATA drivers. Since you're not using
> GPT I gues you can use geom labels to do more or less the same thing.
>
> In short: use labels, nut device names. Saves headaches in many cases.
ZFS actually can find disks without any glabel help. I have one server
which I have moved recently to ahci and nothing changes for me. ZFS
silently accepted new provider names and continue working as usual.
Agreed, I experienced the same thing here when I moved to AHCI. I think
pjd committed some changes in the last few months that greatly improved
the ability of zfs to find devices by uuid. Using glabel or gptid's
with zfs is highly overrated IMO!
Jumping into the discussion without much knowledge about the initial start...
If this is with 8-stable: the stuff is merged and should work.
If this is with 7-stable: the stuff is merged (by me) since 1-2 weeks.
If this is something else, have a look if the code as displayed at
http://svn.freebsd.org/viewvc/base?view=revision&revision=200158
is there (after this commit there is nothing else which affects
the ability to find devices).
What may work too is to export the zpool before switching and
importing it again after switching the storage subsystem.
Bye,
Alexander.
--
Do you mean that you not only want a wrong
answer, but a certain wrong answer?
-- Tobaben
http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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