On Thursday, 23 May 2002 at 21:44:52 +0200, yuri khotyaintsev wrote:
> Hi!
> I had a vinum mirrored volume usr
> with two plexes usr.p0 and usr.p1, with respective
> subdisks usr.p0.s0 and usr.p1.s0.
> So recently one of the disks crashed. I tried to replace the disk with
> another one (which later appeared to be somewhat smaller) and run
>  vinum create  for a new disk. Because of the small size of the new disk
> vinum create exited with error, and after that usr.p1.s0
> dissapeared from the vinum configuration.
> so now I have
> usr.p0 -> 1 subdisk (usr.p0.s0)
> usr.p1 -> 0 subdisk
> Volume usr shows status UP, but trying to run fsck on it produces a
> kernel panic.
> Any suggestions how should I proceed to avoid panic and mount the
> volume?

Well, first I'd like a problem report.  The information I need is
described both in the man page and at
http://www.vinumvm.org/vinum/how-to-debug.html.  In particular I'd
like to see what the panic is.

> I have no possibility to get new large disk now.
> Should I try to remove plex usr.p1 ?

Can you get two smaller ones?  It's possible to mirror to plexes of
different sizes, but obviously if something goes wrong beyond the end
of the smaller plex, you're no longer resilient.

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