
-s Allows a volume group to be varied on in system
maintenance mode. In this mode no logical volumes can
be opened, thereby disallowing all logical I/O to logical
volume and file system data. Since logical volume
commands can still be run on the volume group, it
provides a mechanism for looking at and resolving any
problems that may occur on it.
To vary off a volume group, the following command can be issued:
# varyoffvg myvg
Before a volume group can actually be varied off all open logical volumes must
be closed and all mounted file systems must be unmounted. If a volume group
exhibits some problems and needs to be repaired, this can be done by ...