Managing Serviceguard Sixteenth Edition, March 2009
Preparing the Cluster and the System Multi-node Package
1. First, be sure the cluster is running:
cmviewcl
2. If it is not, start it:
cmruncl
3. If you have not initialized your disk groups, or if you have an old install that needs
to be re-initialized, use the vxinstallcommand to initialize VxVM/CVM disk
groups. See “Initializing the Veritas Volume Manager ” (page 242).
4. The Veritas cluster volumes are managed by a Serviceguard-supplied system
multi-node package which runs on all nodes at once, and cannot failover. In CVM
4.1 and later, which is required for the Cluster File System, Serviceguard supplies
the SG-CFS-pkg template. (In CVM 3.5, Serviceguard supplies the VxVM-CVM-pkg
template)
The package for CVM 4.1 and later has the following responsibilities:
• Maintain Veritas configuration files /etc/llttab, /etc/llthosts,
/etc/gabtab
• Launch required services: cmvxd, cmvxpingd, vxfsckd
• Start/halt Veritas processes in the proper order: llt, gab, vxfen, odm, cvm,
cfs
NOTE: Do not edit system multi-node package configuration files, such as
VxVM-CVM-pkg.conf and SG-CFS-pkg.conf. Create and modify configuration
using thecfs administration commands.
Activate the SG-CFS-pkg and start up CVM with the cfscluster command;
this creates SG-CFS-pkg, and also starts it.
This example, for the cluster file system, uses a timeout of 900 seconds; if your
CFS cluster has many disk groups and/or disk LUNs visible to the cluster nodes,
you may need to a longer timeout value. Use the -s option to start the CVM
package in shared mode:
cfscluster config -t 900 -s
5. Verify the system multi-node package is running and CVM is up, using the
cmviewcl or cfscluster command. Following is an example of using the
cfscluster command. In the last line, you can see that CVM is up, and that the
mount point is not yet configured:
cfscluster status
Node : ftsys9
Cluster Manager : up
CVM state : up (MASTER)
MOUNT POINT TYPE SHARED VOLUME DISK GROUP STATUS
234 Building an HA Cluster Configuration