Managing Serviceguard Sixteenth Edition, March 2009
NOTE: Check the Serviceguard/SGeRAC/SMS/Serviceguard Manager Plug-in 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.
NOTE: Do not create or modify these packages by editing a configuration file. Never
edit their control script files.
Configuring Veritas Multi-node Packages
There are two types of multi-node packages that work with the Veritas Cluster File
System (CFS): SG-CFS-DG-id# for disk groups, which you configure with the
cfsdgadm command; and SG-CFS-MP-id# for mount points, which you configure
with the cfsmntadm command. Each package name will have a unique number,
appended by Serviceguard at creation. Serviceguard automatically creates each
package’s configuration file, its run and halt scripts, and its control script. See “Creating
a Storage Infrastructure with Veritas Cluster File System (CFS)” (page 233).
294 Configuring Packages and Their Services