Managing Serviceguard NFS for Linux, September 2006

Serviceguard NFS for LINUX Introduction
Supported Configurations
Chapter 110
Failover between Active Nodes
Figure 1-2 shows a failover from one active NFS server node to another
active NFS server node. In Figure 1-2, Node_A is the primary node for
Pkg_1, and Node_B is the primary node for Pkg_2. When Node_A fails,
Node_B adopts Pkg_1 and becomes the server for both Pkg_1 and Pkg_2.
Figure 1-2 Failover from One Active NFS Server to Another
NOTE During a package failover, the NFS server may receive a status
information messages such as: Input/output error, Stale NFS file
handle, or Write error: Stale NFS file handle. The result is a
retry. If the package fails over during a user file access, the client may
experience a momentary hang. Access continues as soon as the package
has completed failover to the other node.