HP Serviceguard Toolkit for NFS manual Editing the NFS Control Script hanfs.sh

Installing and Configuring MC/ServiceGuard NFS

Configuring an MC/ServiceGuard NFS Package

Editing the NFS Control Script (hanfs.sh)

The hanfs.sh control script contains NFS specific control variables and functions. The sample steps are as follows:

1.Create a separate XFS[n] variable for each NFS directory to be exported. Specify the directory name and any export options. The directories must be defined in the above mounted file system FS list.

XFS[0]="-o ro /pkg1a" XFS[1]="-o rw /pkg1b"

Do not configure these exported directories in the /etc/exports file. When an NFS server boots up, it attempts to export all file systems in its /etc/exports file. If those file systems are not currently present on the NFS server node, the node cannot boot properly. This happens if the server is an adoptive node for a file system, and the file system is available on the server only after failover of the primary node.

2.If you wish to monitor NFS services (by running the NFS monitor script), set the NFS_SERVICE_NAME and NFS_SERVICE_CMD variables; see the following example:

NFS_SERVICE_NAME[0]=nfs1.monitor

NFS_SERVICE_CMD[0]=/etc/cmcluster/nfs/nfs.mon

If you enable the File Lock Migration feature, ensure that the monitor script name is unique for each package (for example, nfs1.mon). If the File Lock Migration feature is disabled, the monitor script name does not have to be unique to each package (for example, nfs.mon). Multiple instances of the monitor script can run on the same node without any problem. If a package fails over, only the instance associated with that package is killed.

3.You do not have to run the NFS monitor script. If your NFS package configuration file specifies AUTO_RUN YES and

LOCAL_LAN_FAILOVER_ALLOWED YES (the defaults), the package switches to the next adoptive node or to a standby network interface in the event of a node or network failure. The NFS monitor script causes the package failover if any of the monitored NFS services fails.

If you do not want to run the NFS monitor script, comment out the

NFS_SERVICE_NAME and NFS_SERVICE_CMD variables:

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