Serviceguard NFS Toolkit A.11.11.04 and A.11.23.03 Administrator's Guide

Installing and Configuring Serviceguard NFS
Configuring a Serviceguard NFS Package
Chapter 244
Editing the NFS Monitor Script (nfs.mon)
The NFS monitor script, nfs.mon, contains NFS-specific monitor
variables and functions. The nfs.mon script is an optional component of
HA/NFS. The hanfs.sh file specifies whether the NFS monitor script is
used. The following steps describe how to configure the NFS monitor
script:
1. To monitor the File Lock Migration script (nfs.flm), set the
NFS_FILE_LOCK_MIGRATION variable to 1, and set the
NFS_FLM_SCRIPT name to match the hanfs.sh script value for this
variable:
NFS_FILE_LOCK_MIGRATION=1
NFS_FLM_SCRIPT="${0%/*}nfs1.flm"
NOTE The file name of the NFS_FLM_SCRIPT script must be limited to 13
characters or fewer.
NOTE The nfs.mon script uses rpcinfo calls to check the status of various
processes. If the rpcbind process is not running, the rpcinfo calls time
out after 75 seconds. Because 10 rpcinfo calls are attempted before
failover, it takes approximately 12 minutes to detect the failure. This
problem has been fixed in release version 11.11.04 and 11.23.03.
2. You can call the nfs.mon script with the following optional
arguments:
• Interval - the time (in seconds) between the attempts for
checking if NFS processes are up and running. The default is 10
seconds.
• Lockd Retry - the number of attempts to ping rpc.lockd before
exiting. The default is 4 attempts.
• Retry - the number of attempts to ping the rpc.statd,
rpc.mountd, nfsd, rpc.pcnfsd, and nfs.flm processes before
exiting. The default is 4 attempts.
• Portmap Retry - the number of attempts to ping the rpcbind
process before exiting. The default is 4 attempts.
B5140-90021.book Page 44 Wednesday, November 17, 2004 10:52 AM