vxresize does not work with layered volumes that have multiple plexes at the top level (3301991)
If a layered volume has multiple plexes at the top level,
vxresize does not work. For example, if you add a mirror to a concat-mirror volume for a third mirror snapshot. The vxresize operation fails with the following message:
VxVM vxassist ERROR V-5-1-2528 Volume volname built on layered volumes
have multiple plexes
VxVM vxresize ERROR V-5-1-4703 Problem running vxassist command for
volume volname, in diskgroup dgname
Workaround:
To resize the volume
-
After adding the mirror to the volume, take a snapshot using the plex.
-
Grow the volume and snapshot volume with
vxresize -
Reattach the snapshot volume to the source volume.