HP Serviceguard manual Preparing the Cluster and the System Multi-node Package, Cfscluster status

the documentation for HP Serviceguard Storage Management Suite posted at http://www.hp.com/ go/hpux-serviceguard-docs.

IMPORTANT: Before you proceed, make sure you have read “Planning Veritas Cluster Volume Manager (CVM) and Cluster File System (CFS)” (page 126), which contains important information and cautions.

Preparing the Cluster and the System Multi-node Package

The Veritas cluster volumes are managed by a Serviceguard-supplied system multi-node package, SG-CFS-pkg, which runs on all nodes at once, and cannot fail over.

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 the configuration file SG-CFS-pkg.conf. Create and modify configuration using the cfs administration commands.

1.First, make 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 vxinstall command to initialize VxVM/CVM disk groups. See “Initializing the Veritas Volume Manager ” (page 220).

4.Activate the SG-CFS-pkgand 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 -soption 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
Node		:	ftsys10
Cluster Manager		:	up
CVM state		:	up
MOUNT POINT	TYPE		SHARED VOLUME	DISK GROUP	STATUS

202 Building an HA Cluster Configuration