Aldo Foot wrote:
On Thu, Mar 19, 2009 at 10:17 AM, Rick Stevens <ricks@xxxxxxxx> wrote:
Frank Cox wrote:
On Wed, 18 Mar 2009 17:07:28 -0700
Rick Stevens wrote:
We have a serious conflict here. The df command shows you as on sda,
but LVM is reporting sdb. My gut reaction is to have you do a:
vgreduce --test VolGroup00 /dev/sdb2
and see if it would be successful. If so, then remove the "--test" and
cross your fingers.
[root@mutt temp]# vgreduce --test VolGroup00 /dev/sdb2
Test mode: Metadata will NOT be updated.
Physical Volume "/dev/sdb2" not found in Volume Group "VolGroup00"
This is consistent with the fact that the "active" Volume Group that I'm
using
is not on /dev/sdb2. It's just the "lvdisplay -vm" command that shows it
as
being in use.
This is truly screwey. The pvscan shows sdb2 as part of VolGroup00,
lvdisplay shows the partition as in use, but vgreduce says sdb2 isn't
part of the VG. Hoo, boy.
Frank, this is potentially dangerous, but you can try
# pvremove /dev/sdb2
to wipe out sdb2's PV status. Since you seem to be running on /dev/sda
and vgreduce claims that /dev/sdb2 isn't part of the active VG, you
should be able to do this without blowing things up.
Damn this makes me nervous!
The pvremove man page does say whether the UUID can be used to remove
a PV. Using the UUID would've come very handy in this kind of situation.
True, Aldo, but the interesting thing is that we're seeing very
inconsistent data. The LV is running on /dev/sda2, but the status info
show stuff as being on /dev/sdb2. For example, vgreduce says that
/dev/sdb2 isn't part of the VG, while vgdisplay says it is. lvdisplay
shows extents on /dev/sdb2 as being in use when, in fact, they aren't.
My brain is starting to hurt.
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