On Wed, 24 Nov 2010 20:28:11 +0000, Andrew Gideon wrote:
> Finally, there was mention of changing lvm.conf - presumably,
> metadata.dirs - to help make more space. Once lvm.conf is changed, how
> is that change made live? Is a complete reboot required, or is there a
> quicker way?
It looks like changes to this file are immediate. However, I'm having a problem
with metadata being stored "outside" the VG.
I tried:
* For all PVs in the test VG but one:
* pvcreate -ff --restorefile /etc/lvm/backup/... --uuid ... --metadatacopies 0 /dev/xvdN1
* vgcfgbackup
* cp -p the backup file to the directory I will specify for metadata.dirs in lvm.conf
* Add the directory to lvm.conf as metadata.dirs
I immediately start seeing "memory" errors from LVM commands. For example:
[root@noodle6 tagonline]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "TestVG0" using metadata type lvm2
Found volume group "guestvg00" using metadata type lvm2
You have a memory leak (not released memory pool):
[0x83e7848]
[0x83e7868]
You have a memory leak (not released memory pool):
[0x83e7848]
[0x83e7868]
[root@noodle6 tagonline]#
I then
* pvcreate -ff --restorefile /etc/lvm/backup/... --uuid ... --metadatacopies 0 /dev/xvdN1
on the final PV that has metadata.
Now, I cannot see the volume group:
[root@noodle6 tagonline]# vgdisplay -v TestVG0
Using volume group(s) on command line
Finding volume group "TestVG0"
Wiping cache of LVM-capable devices
Volume group "TestVG0" not found
You have a memory leak (not released memory pool):
[0x8c59ef8]
[0x8c55fa8]
[0x8c55ed0]
[0x8c48aa0]
You have a memory leak (not released memory pool):
[0x8c59ef8]
[0x8c55fa8]
[0x8c55ed0]
[0x8c48aa0]
[root@noodle6 tagonline]#
If I
* pvcreate -ff --restorefile /etc/lvm/backup/... --uuid ... --metadatacopies 1 /dev/xvdN1
* vgcfgrestore
then the volume group is back. More oddly, vgdisplay -v reports:
Metadata Areas 2
but, for some reason, the metadata area being used on a separate file system isn't
sufficient or working.
Am I doing something wrong?
This is on CentOS 5.5 386 with:
[root@noodle6 tagonline]# lvm version
LVM version: 2.02.56(1)-RHEL5 (2010-04-22)
Library version: 1.02.39-RHEL5 (2010-04-22)
Driver version: 4.11.5
Thanks...
- Andrew
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