Here we are going to findout how to mark volume groups as active or inactive in Linux using lvchange command in Linux Use lvscan command to get list of volumes
#/usr/sbin/lvscan
the output will be
ACTIVE ‘/dev/Linux_volume/LogVol00′ [33.78 GB] inherit
ACTIVE ‘/dev/Linux_volume/LogVol02′ [10.00 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol00′ [35.25 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol01′ [1.94 GB] inherit
Then for testing, mark this Linux_volume as inactive by following procedure. Umount the partitions before proceeding.Then use the following command to mark volume group inactive.
#/usr/sbin/lvchange -a n /dev/Linux_volume
Verify it with lvscan.The current lvscan output will be,
inactive ‘/dev/Linux_volume/LogVol00′ [33.78 GB] inherit
inactive ‘/dev/Linux_volume/LogVol02′ [10.00 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol00′ [35.25 GB] inherit
ACTIVE ‘/dev/VolGroup00/LogVol01′ [1.94 GB] inherit
We can change it back to active with following command
# /usr/sbin/lvchange -a y /dev/Linux_volume
Note: You must Umount the partitions before proceeding to mark volume group inactive
And mount the logical volumes after marking active
Read more: http://www.lynuxstuff.com/2011/06/how-to-mark-volume-groups-as-active-or-inactive/#ixzz23ftkCdmG