Using Serviceguard Extension for RAC, 9th Edition, September 2010

CLUSTER STATUS
bowls up
NODE STATUS STATE
spare up running
split up running
strike up running
SYSTEM_MULTI_NODE_PACKAGES:
PACKAGE STATUS STATE
VxVM-CVM-pkg up running
When CVM starts up, it selects a master node. From this node, you must issue the disk group
configuration commands. To determine the master node, issue the following command from
each node in the cluster:
# vxdctl -c mode
One node will identify itself as the master. Create disk groups from this node.
Converting Disks from LVM to CVM
Use the vxvmconvert utility to convert LVM volume groups into CVM disk groups. Before
you can do this, the volume group must be deactivated—any package that uses the volume
group must be halted. This procedure is described in the latest edition of the Managing Serviceguard
user guide.
Initializing Disks for CVM
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:
# /usr/lib/vxvm/bin/vxdisksetup -i /dev/dsk/c0t3d2
Creating Disk Groups for RAC
Use the vxdg command to create disk groups. Use the -s option to specify shared mode, as in
the following example:
# vxdg -s init ops_dg c0t3d2
Verify the configuration with the following command:
# vxdg list
NAME STATE ID
rootdg enabled 971995699.1025.node1
ops_dg enabled,shared 972078742.1084.node2
Creating Volumes
Use the vxassist command to create logical volumes. For example:
# vxassist -g log_files make ops_dg 1024m
This command creates a 1024MB volume named log_files in a disk group named ops_dg.
The volume can be referenced with the block device file /dev/vx/dsk/ops_dg/log_files
or the raw (character) device file /dev/vx/rdsk/ops_dg/log_files.
Verify the configuration with the following command:
Creating Volumes 97