Extend Clustered File System on HP-UX 11.23 Service Guard Cluster Nodes

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)