LVM

[Prashant Zanwar_4]

What would happen if I vgexport VG's having devices with NO_HW state?
Thanks and regards
Prashant

[Patrick Wallek · Accepted solution]

Your VG would still get exported and the /dev/vg* directory be removed.

A vgexport does not do anything to the VGRA on the disks which is why you can later vgimport if you need to.

[Robert-Jan Goossens]

I think vgexport will execute.

--- Man vgexport---
Using the format of the first command line of the SYNOPSIS above, the vgexport command can be used to remove a volume group from the system. The volume group will be removed without modifying the logical volume information found on the physical volumes.
---
Last line is important.

Hope this helps,
Robert-Jan

[Cesare Salvioni]

hi
same opinion as other ppl.
vgexport works only on internal tables, doesn't change anything on the disks (that's the trick) so doesn't matter the disks state

hope it helps

[Geoff Wild]

The disk would be exported from the server.

Same as pulling a disk out - and not replacing it.

vgexport only removes from the OS.

Example, you could vgimport that disk on another server.

That's why it is best to blow away the contents of a disk - easy way - pvcreate -f it - that will remove all lvol information.

You may also have to rmsf the device files - to clean up.

Then re-run ioscan -fnC disk, and insf -e

Rgds...Geoff

[Florian Heigl (new acc)]

(Of course the vg has to be inactive - but vgchange also works in that situation from what I can remember)