[linux-lvm] Are there problems with same VG on same hard disk?

Joe Thornber thornber at sistina.com
Wed Apr 9 06:39:01 UTC 2003

On Wed, Apr 09, 2003 at 01:27:39PM +0200, Kai Weber wrote:
> Hi,
> Question: Is it good to have /dev/hdb1 /dev/hdb2 into the same Volume
> Group? I think I have read that VGs of the same group should not be on
> the same hard disk. Is this correct or a legend?

This is fine.  There are a couple of situations that you will have to
look out for when setting up LVs though:

1) Don't create a striped LV with the stripes on the same physical device.
2) Try not to create a snapshot on the same physical device as the origin.

Point 2 you can get away with, snapshot performance will just be poor.

- Joe

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