Managing Serviceguard Fifteenth Edition, reprinted May 2008

Configuring Packages and Their Services
Configuring Veritas System Multi-node Packages
Chapter 6 325
Configuring Veritas System Multi-node
Packages
There are two system multi-node packages that regulate Veritas Cluster
Volume Manager (CVM) and Cluster File System (CFS). These packages
ship with the Serviceguard product. There are two versions of the
package files: VxVM-CVM-pkg for CVM Version 3.5, and SG-CFS-pkg for
CFS/CVM Version 4.1 and later.
NOTE Check the Serviceguard, SGeRAC, and SMS Compatibility and Feature
Matrix and the latest Release Notes for your version of Serviceguard for
up-to-date information on support for CVM and CFS:
http://www.docs.hp.com -> High Availability -> Serviceguard.
The SG-CFS-pkg for CVM Version 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
CAUTION Serviceguard manages Veritas processes, specifically gab and LLT,
through system multi-node packages. As a result, the Veritas
administration commands such as gabconfig, llthosts, and lltconfig
should only be used in the display mode, such as gabconfig -a. You
could crash nodes or the entire cluster if you use Veritas commands such
as the gab* or llt* commands to configure these components or affect
their runtime behavior.
For CVM, use the cmapplyconf command to add the system multi-node
packages to your cluster. If you are using the Veritas Cluster File
System, use the cfscluster command to activate and halt the system
multi-node package in your cluster.