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

Figure 2-1 Server-to-Server Cross-Mounting
The advantage of server-to-server cross-mounting is that every server has an identical
view of the file systems. The disadvantage is that, on the node where a file system is
locally mounted, the file system is accessed through an NFS mount, which has poorer
performance than a local mount.
In order to make a Serviceguard file system available to all servers, all servers must
NFS-mount the file system. That way, access to the file system is not interrupted when
the package fails over to an adoptive node. An adoptive node cannot access the file
system through the local mount, because it would have to unmount the NFS-mounted
38 Installing and Configuring Serviceguard NFS