[dthacker]

I need to take one logical volume and move it from alphavg to betavg. I thought that migratevg might let me pull this off without archiving/deleting/recreating. Looking at the "Logical Volume Manager from A to Z", it seems that "migratelv" is only for physical relocation withing a volume group. Am I right?

TIA Dave

[ross.mather]

Yes you are correct, migratelv is a physical movement on disk.

To move the contents of an LV to another VG I would usually do this:
create new LV in target volume group, and mount ata a temporary location ( eg /mnt ).
Stop the application that uses the LV
cd <root directory of source filesystem>
tar -cvf - * | ( cd /mnt ; tar -xvf - )
umount both directories
delete the original filesystem and logical volume.
Change the mount point for the new filesystem
mount the new filesystem
start the application.

[seth]

Originally Posted by ross.mather

To move the contents of an LV to another VG I would usually do this:
create new LV in target volume group, and mount ata a temporary location ( eg /mnt ).
Stop the application that uses the LV
cd <root directory of source filesystem>
tar -cvf - * | ( cd /mnt ; tar -xvf - )
umount both directories
delete the original filesystem and logical volume.
Change the mount point for the new filesystem
mount the new filesystem
start the application.

I would simple do a
umount /filesystem-I-want-to-move
cplv -Y new-lvname-prefix -v destination-vg source-lv
edit /etc/filesystems entry to the new lvname and change the jfs2log to the log of the new VG.
mount the moved file system
(rmlv oldlv if necessary)
Ready.
Cheers seth