Active – Standby – NFS v4

This section provides an example of Active/Standby for NFS v4. In this configuration, Server 1 is considered active because it is running NFS and exporting the file systems. Server 2 does other processing. If Server 1 fails, Server 2 gains access to the file systems and uses the LifeKeeper secondary hierarchy to make it available to clients.

*Note: In an active/standby configuration, Server 2 might be running NFS but does not have any other NFS resources under LifeKeeper protection.

Active/Standby Configuration Example for NFS v4

Configuration Notes:

• The NFS software must be installed on both servers.

• The underlying file systems (File Systems A, B and C) must be mounted and be on shared (or replicated) disks.

• Bind mounts must be completed prior to creation (bind /usr/local/bin to /export/bin and bind /usr/local/opt to /export/opt).

• The NFS export points are /export, /export/bin and /export/opt.

• The exported file systems must have the same mount point on both the primary and backup servers.

• Server 2 cannot access files and directories on the shared disk while Server 1 is active.

Creating a Resource Hierarchy to Server 1:

*Note: With the selection of the export points, bind information is picked up automatically; therefore, no input is required to create and extend the hierarchy.

Extending a Resource Hierarchy to Server 2: