LVM Command

1) # chfs -a size=+/-<size> <file system> /* Increases/Decrease the size of a journaled file system to the total number of  512 byte blocks specified */

2) # chlv -n <new name> <old name> /* Change the name of a logical volume (it must be inactive) */

3) # mklv -y <LV name> -t <LV type> <VG name> <No.of PP's> /* This command makes a logical volume, mount point with a journaled file system */

4) # crfs -v <File system type> -d < LV name> -m <Mount point> /* Creates a jfs file system on a logical volume. */

5) # df -k /*  Shows the disk usage of logical volumes on the server.*/

6) # reducevg -d -f <VG name> <PV name> /* Removes a volume group from a machine */

7) # extendvg <VG name> <PV name> /*Adds a new physical volume to an existing volume group*/

8) # mkvg -y <VG name> <PV name> /* Add a volume group to another machine */
9) # lslv <LV name> /*Lists information about the logical volumes. */

10) # lspv /*Lists the disks on the server, including the physical volume will give details about that disk. */

11) #lsvg <VG name> /* Lists the volume groups on the server, including the volume group name will give details about that vg. */

12) #lsvpcfg  /* Lists each vpath and the hdisks that make up the vpath*/