Using Existing LUNs

• Find the master node by executing the following command and execute the rest of the CFS commands on that master node:

vxdctl -c mode

• Assuming that one or more LUNs has already been attached to all nodes, find the newly added disk:

vxdisk list

• Find the free space to be sure there's enough. This will show the available space in kB

vxassist -g (disk group name) -p maxsize

• Get the logical volume name for the file system being extended

bdf

• Extend the logical volume.

vxassist -g (disk group name) growby (logical volume name) (size in kB)

• Find the current total size

vxprint -g (disk group name) -pl

• Extend the file system

fsadm -F vxfs -b (total size) (mount point)

New LUNS Added

• Find the master node by executing the following command and execute the rest of the CFS commands on that master node:

vxdctl -c mode

• Assuming that one or more LUNs has already been attached to all nodes, find the newly added disk:

vxdisk list

If you're not able to find the newly added disk do the following steps:

vxdisk scandisks
vxdisk list

If the problem persists, carry out the following steps. This won't do any harm on your running system.

mv /etc/vx/disk.info /etc/vx/disk.info.old
vxconfigd -m -k enable

• Initialize new disks

/usr/lib/vxvm/bin/vxdisksetup -i cxtxdx

• Add new disks to Disk Group

vxdg -g 9disk group name) adddisk disk1 disk2 disk3

• Verify the Disk Group

vxdisk list

• Find the free space. This will show the available space in kB of existing LUNs and the new LUNs

vxdg -g (disk group name) free

• Extend the Volume.

vxassist -g (disk group name) growby (logical volume name) (size in kB)

• Find the current total size

vxprint -g (disk group name) -pl

• Extend the file system

fsadm -F vxfs -b (total size) (mount point)