Command to activate VG on LVM

When you create a volume group, by default, it is activated. Sometimes you may need to activate it manually to make the kernel aware of volume groups.

To activate,

    # vgchange -ay my_vg_name

To De-activate,

    # vgchnage -an my_vg_name

A command to activate the VG in a cluster?

To activate exclusively on one node,

    # vgchange -aey my_vg_name

To deactivate exclusively on one node,

    # vgchange -aen my_vg_name

To activate only on the local node,

    # vgchange -aly my_vg_name

To deactivate only on the local node,

    # vgchange -aln my_vg_name