How to mark volume groups as active or inactive

Here we are going to findout how to mark volume groups as active or inactive in Linux using lvchange command in Linux useLvscanCommand 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/logvol0' [10.00 GB] inherit
"Active"/dev/volgroup00/logvol00' [35.25 GB] inherit
Active '/dev/volgroup00/logvol01' [1.94 GB] inherit

Then for testing, mark thisLinux_volumeAs 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 itLvscan. The currentLvscanOutput 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 backActiveWith 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