Using Serviceguard Extension for RAC, 8th Edition, March 2009

Edit Cluster file

2. Create the Cluster

# cmapplyconf -C clm.asc

• Start the Cluster

# cmruncl

# cmviewcl

The following output will be displayed:

CLUSTER STATUS

ever3_cluster up

NODE STATUS STATE

ever3a up running

ever3b up running

3. Configure the Cluster Volume Manager (CVM)

Configure the system multi-node package, SG-CFS-pkg, to configure and start the CVM

stack. Unlike VxVM-CVM-pkg, the SG-CFS-pkg does not restrict heartbeat subnets to a

single subnet and supports multiple subnets.

Use the cmapplyconf command:

# cmapplyconf -P /etc/cmcluster/cfs/SG-CFS-pkg.conf

# cmrunpkg SG-CFS-pkg

When CVM starts up, it selects a master node, which is the node from which 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

The following output will be displayed:

mode: enabled: cluster active SLAVEmaster: ever3b

mode: enabled: cluster active MASTERmaster: ever3b

• 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, which means that any

package that uses the volume group must be halted. This procedure is described in the

Managing Serviceguard Sixteenth Edition user’s 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 -s option to specify shared

mode, as in the following example:

# vxdg -s init ops_dg c4t4d0

60 Serviceguard Configuration for Oracle 10g or 11gR1 RAC