Re: 2.6.16.20/dm: can't create more then one snapshot of an lv
From: Heinz Mauelshagen
Date: Tue Jun 20 2006 - 07:54:34 EST
On Tue, Jun 20, 2006 at 09:46:13PM +1000, CaT wrote:
> On Tue, Jun 20, 2006 at 12:02:09PM +0200, Heinz Mauelshagen wrote:
> > How many snapshots active at once ?
>
> 1. I can start more then 1 premade snapshots just fine and use them
> but the moment I add another one a freeze occurs.
Well, that's fairly few ;)
>
> > I guess this is a kcopyd scalability issue which needs addressing.
>
> Well in the end I'm hoping to get at least 7. Hopefully that's not
> insane. :)
No, I was assuming, you were trying to activate plenty.
FYI: the snapshot code in 2.6.17-rc has received a fair amount of fixes
which might help this vs. 2.6.16.20.
>
> --
> "To the extent that we overreact, we proffer the terrorists the
> greatest tribute."
> - High Court Judge Michael Kirby
--
Regards,
Heinz -- The LVM Guy --
*** Software bugs are stupid.
Nevertheless it needs not so stupid people to solve them ***
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Heinz Mauelshagen Red Hat GmbH
Consulting Development Engineer Am Sonnenhang 11
Storage Development 56242 Marienrachdorf
Germany
Mauelshagen@xxxxxxxxxx PHONE +49 171 7803392
FAX +49 2626 924446
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