Help with Vinum disk crash...

Greg 'groggy' Lehey grog at
Mon Feb 23 16:16:46 PST 2004

On Monday, 23 February 2004 at 12:44:19 +0100, Danny Carroll wrote:
> Greg,
> Thanks for all the responses.  Unfortunatly I ran out of time and resorted to a
> restore of week old data.  No big loss for me, but I really wanted to debug
> this to better understand what happened.
> I think it went something like this:
> ide drive crashes.
> kernel panics (for this or some other reason).
> ufs gets screwed up on the drive because of the panic.

We already discussed this.  The likelihood of such far-reaching damage
is low.

> I can't prove any of this since I urgently needed about 150gb of
> space.  So I re-formatted.
> Like I said it is a shame since I wanted to understand what happened
> now, but, then again, I was looking for an excuse to change back
> from vinum to normal.

To be honest, I don't know what else we could have done, since you
haven't supplied the information I asked for.

> vinum and ide on my system results is very poor disk performance, I
> see a 10-fold increase in read/write actions.  I'll be interested in
> revisiting vinum with some SCSI disks sometime soon.

How did you test it?

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