Managing Serviceguard NFS for Linux, March 2009

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.
Failover with an Adoptive Node for Multiple Packages
Figure 1-3 shows a three-node configuration where one node is the adoptive node for packages
on both of the other nodes. If either Node_A or Node_C fails, Node_B adopts the NFS server
package from that node. When Node_A fails, Node_B becomes the server for Pkg_1. If Node_C
fails, Node_B will become the server for Pkg_2.
Supported Configurations 11