Serviceguard NFS Toolkit A.11.31.02, A.11.11.06, and A.11.23.05 Administrator's Guide

Serviceguard A.11.17 is not available on HP-UX 11i v1 systems, so Serviceguard
CFS support is only applicable to HP-UX 11i v2.
Limitations
The following is a list of limitations when using Serviceguard NFS Toolkit A.11.23.05
with Serviceguard A.11.17:
• Serviceguard A.11.17 introduces a new MULTI_NODEpackage type which is not
supported by Serviceguard NFS Toolkit. The only supported package type is
FAILOVER.
• Serviceguard A.11.17 provides a new package configuration file template. The
new package configuration file template introduces the following dependency
variables:
— DEPENDENCY_NAME
— DEPENDENCY_CONDITION
— DEPENDENCY_LOCATION
The above parameters are not supported in Serviceguard NFS Toolkit A.11.23.05.
By default, these variables are commented out in the nfs.conf file.
Supported Configurations
Serviceguard NFS supports the following configurations:
• Simple failover from an active NFS server node to an idle NFS server node.
• Failover from one active NFS server node to another active NFS server node, where
the adoptive node supports more than one NFS package after the failover.
• A host configured as an adoptive node for more than one NFS package. The host
may also be prevented from adopting more than one failed package at a time.
• Cascading failover, where a package may have up to three adoptive nodes.
• Server-to-server cross mounting, where one server may mount another server’s
file systems, and the mounts are not interrupted when one server fails.
These configurations are illustrated in the following sections.
Simple Failover to an Idle NFS Server
Figure 1-1 shows a simple failover from an active NFS server node to an idle NFS server
node.
Supported Configurations 13