[linux-lvm] Re: [dm-devel] Re: LVM on dmraid breakage

Alasdair G Kergon agk at redhat.com
Tue Aug 7 22:01:49 UTC 2007

On Tue, Aug 07, 2007 at 11:17:47AM +0200, Luca Berra wrote:
> 1) disable the automatic vgscan performed by every lvm command

With access to a 100% accurate external device database instead of the
existing .cache this is easy.
The --trustcache argument would be enabled by default on such a system.

> 2) modify pvscan to be able to scan a single device

This would actually just be something like 'pvs -o uuid <device>' with
a subtle modification so it notices there are no VG fields required
and so it doesn't attempt to access the VG metadata (which might
require accessing disks other than the one specified).

agk at redhat.com

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