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

4. 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

5. Configure the Cluster Volume Manager (CVM).

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

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

single subnet and supports multiple subnets.

# cfscluster config -s

The following output will be displayed:

CVM is now configured Starting CVM

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

The following output will be displayed:

mode: enabled: cluster active SLAVEmaster: ever3b

mode: enabled: cluster active MASTERmaster: ever3b

6. Converting disks from LVM to CVM.

You can 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 lastest edition of the

Managing Serviceguard user guide.

7. Initializing disks for CVM/CFS.

You need 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 (if you have not

previously used the disk with LVM, this is not necessary).

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

8. 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 cfsdg1 c4t4d0

9. Create the disk group multi-node package. Use the following command to add the disk

group to the cluster:

# cfsdgadm add cfsdg1 all=sw

Creating a Storage Infrastructure with CFS 51