HP Serviceguard Extension for RAC (SGeRAC) manual # /etc/vx/bin/vxdisksetup -i c4t4d0

that uses the volume group must be halted. This procedure is described in the Managing Serviceguard Eighteenth Edition user guide Appendix G.

•Initializing disks for CVM.

It is necessary to initialize the physical disks that will be employed in CVM disk groups. If a physical disk has been previously used with LVM, you should use the pvremove command to delete the LVM header data from all the disks in the volume group (this is not necessary if you have not previously used the disk with LVM).

To initialize a disk for CVM, log on to the master node, then use the vxdiskadm program to initialize multiple disks, or use the vxdisksetup command to initialize one disk at a time, as in the following example:

#/etc/vx/bin/vxdisksetup -i c4t4d0

•Create the disk group for RAC.

Use the vxdg command to create disk groups. Use the -soption to specify shared mode, as in the following example:

#vxdg -s init ops_dg c4t4d0

4.Creating volumes and adding a cluster filesystem.

# vxassist -g ops_dg make vol1 10240m

#vxassist -g ops_dg make vol2 10240m

# vxassist -g ops_dg make vol3 300m

5.View the configuration.

# cmviewcl

CLUSTER STATUS

ever3_cluster up

NODE	STATUS	STATE
ever3a	up	running
ever3b	up	running
MULTI_NODE_PACKAGES
PACKAGE	STATUS	STATE	AUTO_RUN	SYSTEM
SG-CFS-pkg	up	running	enabled	yes

54 Serviceguard Configuration for Oracle 10g, 11gR1, or 11gR2 RAC