바뀐LUN사이즈를VG에적용할때

Currently C-SPOC is unable to provide functionality for dynamic volume

expansion. The chvg command does not support use in volume groups varied on

in enhanced concurrent mode. If you want to increase the size of a shared LUN

allocated to your cluster, follow this process:

1. Bring the volume group offline (stop the cluster on all nodes).

2. On the first cluster node:

 a. Run cfgmgr

 b. Varyon the volume group in normal mode: varyonvg vgname

 c. Run lsattr -El hdisk# to check the size of the disk.

 d. To update the size of the disks in the VG, run chvg -g vgname (this will determine if VG factor change is required to meet the correct 1016 multiplier).

 e. Run lsvg vgname to check the new size.

 f. Varyoff the volume group: varyoffvg vgname

3. On subsequent cluster nodes that share the VG:

 a. Run cfgmgr

 b. Run lsattr -El hdisk# to check the size of the disk.

 c. Import the volume group which you have changed: importvg -L vgname hdisk#

4. Back on the first cluster node:

 a. Varyon the volume group: varyonvg vgname

 b. Run smitty hacmp  Extended Configuration  Extended Verification and Synchronization and ensure there are no errors.

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