HP-UX HB v13.00 Ch-15 - Serviceguard

HP-UX Handbook – Rev 13.00 Page 104 (of 108)
Chapter 15 Serviceguard
October 29, 2013
of the Serviceguard Storage Managment Suite bundles, the file /etc/gabtab is
automatically configured and maintained by Serviceguard. GAB provides membership
and messaging for CVM and the CFS. GAB membership also provides orderly startup
and shutdown of the cluster file system.
 LLT (Low Latency Transport) - When VERITAS CVM or CFS is deployed as part of the
Serviceguard Storage Managment Suite bundles, the LLT files /etc/llthosts and /etc/llttab
are automatically configured and maintained by Serviceguard. LLT provides kernel-to-
kernel communications and monitors etwork communications for CFS.
For more informations about CVM please refer to the section “Type of Volume Managers”.
CFS Commands
Requires selected HP Serviceguard Storage Management Suite Bundle
cfscluster
 Configure or unconfigure SG-CFS-pkg, the system multi-node
package used for clusters that use the VERITAS Cluster File System.
 Start or stop the CVM package for the CFS.
 Get the status of the SG-CFS-pkg package.
cfsdgadm
 Display the status of CFS disk groups.
 Add shared disk groups to a VERITAS Cluster File System CFS
cluster configuration, or remove existing CFS disk groups from the
configuration.
Serviceguard automatically creates the multi-node package SG-CFS-
DG-id# to regulate the disk groups. This package has a dependency on
the SG-CFS-pkg created by cfscluster command.
 Activate or de-activate the shared disk groups, clusterwide or on
specified node(s).
cfsmntadm
Add, delete, modify, or set policy on mounted filesystems in a VERITAS
Cluster File System (CFS) cluster.
cfsmount
cfsumount
Mount or unmount a VERITAS Cluster File
System.
cmgetpkgenv
Allows the VERITAS Cluster File System (CFS) admin packages to retrieve
their configured values from the context of the package control script.
CFS Daemons
vxfend
the I/O fencing daemon
implements a quorum-type functionality
for the VERITAS Cluster File System
cmvxd
Serviceguard-to-VERITAS
Membership Coordination daemon.
(Only present when VERITAS CFS is
installed.)
coordinates the membership information
between Serviceguard and VERITAS'
Clustered File System product
cmvxping
Serviceguard-to-VERITAS
Activates certain subsystems of the