Vinum Help Needed (was: Mail auth and FreeBSD/Sendmail)

[John Souvestre]

Hello.

I apologize for the mistakes and omissions in my original posting.  I've
included additional information in this message.

I'm running Vinum on a Free BSD 4.9 system with 3 hard drives.  It's been
operational for about 5 years.  The first drive is a small one and I boot from
it.  The second and third drive are mirrored, using Vinum, and contain most of
the system's data (1 volume, 1 plex per drive, 1 subdisk per plex).  The
operating system and Vinum are stock, no modifications.  The Vinum config has
not been modified in years.

The system locked up on me this morning.  When I rebooted there was a problem
with the Vinum mirrored drives.  When I did a "list" from Vinum both subdisks
were "stale" and both plexes were "faulty".

After playing around a while, I didn't know what to do, so I stupidly tried
something which probably made things worse.  I did a "start" on one of the
plexes.  It took a few minutes and then came up along with the subdisk on it.
But I'm afraid that it seems to be empty.

When I boot now I get a "bad super block: magic number wrong" error, along
with "unexpected soft update inconsistency", "/dev/vinum/mirror: cannot figure
out file system partition".

Vinum now lists the drives as "up", the volume as "up", the plexes as "up" and
"faulty", the subdisks as "up" and "stale".  I would love to post a copy of
the Vinum "list" but I don't know of any way to copy it from the console to
here.

Unfortunately, the /var/log directory is on the Vinum drive.  So I am unable
to access it.

Bottom line:  I'm guessing that I blew away the first plex.  Is there a way to
tell?  Is there any way to get the second plex up and running, and to restore
the first plex from it?

Thanks,

John

    John Souvestre - Southern Star - (504) 888-3348 - www.sstar.com


-----Original Message-----
From: Greg 'groggy' Lehey [mailto:grog at FreeBSD.org] 
Sent: Tuesday, October 05, 2004 6:17 PM
To: John Souvestre
Cc: freebsd-questions at freebsd.org
Subject: Re: Vinum Help Needed (was: Mail auth and FreeBSD/Sendmail)

On Tuesday,  5 October 2004 at  7:47:24 -0500, John Souvestre wrote:
> In-Reply-To: <416291F4.5040005 at grokking.org>

Please don't reply to unrelated threads.  See
http://www.lemis.com/questions.html for more details.

> I'm running Vinum on a 4.9 system with 3 drives.  The first drive is
> a small one and I boot from it.  The second and third drive are
> mirrored, using Vinum, and contain most of the system's data (1
> volume, 1 plex per drive, 1 subdisk per plex).
>
> The system locked up on me this morning.  When I rebooted there was
> a problem with the Vinum mirrored drives.  When I did a "list" from
> Vinum both subdisks were "stale" and both plexes were "faulty".
>
> ...

> I'm guessing that I blew away the first plex.

I can't guess what you did.

> Is there any way to get the second plex up and running, and to
> restore the first plex from it?

Maybe.

Please read http://www.vinumvm.org/vinum/how-to-debug.html, retrace
your steps and see if you can work out what you did wrong.  If not,
please supply the information asked for there, and maybe somebody will
be able to help you.

Greg
--
When replying to this message, please copy the original recipients.
If you don't, I may ignore the reply or reply to the original recipients.
For more information, see http://www.lemis.com/questions.html
See complete headers for address and phone numbers.