Re: vinum experimentation
From: Greg 'groggy' Lehey (grog_at_FreeBSD.org)
Date: 12/31/03
- Previous message: Pav Lucistnik: "Re: 5.2-RC Kernel panic when swapping between DVD and audio CD"
- In reply to: Stephen Corbesero: "vinum experimentation"
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Date: Wed, 31 Dec 2003 09:30:24 +1030 To: corbesero@cs.moravian.edu
On Tuesday, 30 December 2003 at 14:15:44 -0500, Stephen Corbesero wrote:
>
> I hope this is information is useful. I am really hoping to have a
> working vinum in FreeBSD 5.x.
>
> As we all know, vinum has been cranky for a little while now. It
> seemed to work fine for me in the early 5.0's, but went 'south"
> sometime as the 5.1's began coming out.
Well, what happened were incompatibilities with changes introduced
with GEOM. Specifically, swap on Vinum currently doesn't work, and
it'll take a rewrite before it does.
> I have been playing with it on a couple of machines at work, and I
> have noticed the following behaviors. I am mostly playing with
> mirroring some volumes on two IDE drives.
>
> * If I start vinum manually after the system is up, and shut it down
> manually before I do a reboot, the configuration seems to survive
> just fine. On the next boot, I can again start vinum manually,
> the drives are read, and I can mount the partitions.
>
> * If I let vinum come up automatically (setting start_vinum="YES" in
> rc.conf), then one of the following will happen.
>
> a) a system panic before the boot process is completed
Do you have a dump?
> b) at least one of the vinum can not be found, so anything that
> drive is down/faulty. did discover, however, that if I
> recreate the drive in vinum, the plexes cheerfully come
> back.
Do you have log files?
> c) the vinum drives can be found, but no volumes are defined
> anymore
More details?
> If this is useful, and someone would like more information, I'll be
> happy to continue my experiments.
This level of information is not very useful. I do all these things
all the time, and I don't have problems. On the other hand, if you're
having problems, I'd like to know why. Take a look at
http://www.vinumvm.org/vinum/how-to-debug.html and supply the
appropriate information. That way we have a hope of solving the
problems.
FWIW, most problems I've seen with Vinum have been pilot error.
Greg
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- Previous message: Pav Lucistnik: "Re: 5.2-RC Kernel panic when swapping between DVD and audio CD"
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