LVM commands tutorial : Part 3 : Logical Volume (lvsync, lvlnboot)

Series of tutorial to learn LVM commands. In this part, learn how to sync LV and set it as a boot, root, swap device(lvsync, lvlnboot)

Command : lvsync

It synchronizes stale PE in given LV. Its used in mirroring environment. Whenever there is any disk failure or disk path issue, PE goes bad and LV in turns has stale PE. Once the issue is corrected we need to sync stale PE with this command if they doesnt sync automatically.

Command dosnt have any options. It should be supplied with LV path only.

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# /usr/sbin/lvsync /dev/vg00/lvol6

Resynchronized logical volume "/dev/vg00/lvol6".

Command : lvlnboot

This command used to define logical volume as a root, dump, swap or boot volume. You have to submit LV path along with specific option of your choice to command. Options are as below :

-b Boot volume
-d Dump volume
-r Root volume
-s Swap volume
-R Recover any missing links
-v Verbose mode

Shell

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# lvlnboot -r /dev/vg00/lvol3

Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

# lvlnboot -b /dev/vg00/lvol1

Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

# lvlnboot -s /dev/vg00/lvol2

Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf

# lvlnboot -d /dev/vg00/lvol2

Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf