SG NFS over CFS with file locking | HP Serviceguard Toolkit for NFS

NFS		NFS	NFS
Client1		Client2	Client3
Serviceguard NFS servers
NFS Server1 - thyme			NFS Server2 - basil
Failover Package 1			Failover Package 2
/cfs1			/cfs2
	Cluster File System
Shared Storage	/cfs1	/cfs2
	/cfs1	/cfs2

Figure 6. SG NFS over CFS with file locking

Configuring a Serviceguard NFS failover package

Configuring a Serviceguard NFS failover package for a CFS environment is similar to configuring the package for a non-CFS environment. The main difference is that you must configure one failover package for every server that exports CFS.

1.Copy the following scripts and make a separate copy for each package (one package for each server):

#cd /etc/cmcluster/nfs

#cmmakepkg –p /etc/cmcluster/nfs/nfs1.conf

#cmmakepkg –s /etc/cmcluster/nfs/nfs1.cntl

#cp /opt/cmcluster/nfs/hanfs.sh hanfs.1.sh

#cp /opt/cmcluster/nfs/nfs.mon nfs1.mon

#cp /opt/cmcluster/nfs/nfs.flm nfs1.flm

#cmmakepkg –p /etc/cmcluster/nfs/nfs2.conf

#cmmakepkg –s /etc/cmcluster/nfs/nfs2.cntl

#cp /opt/cmcluster/nfs/hanfs.sh hanfs.2.sh

#cp /opt/cmcluster/nfs/nfs.mon nfs2.mon

#cp /opt/cmcluster/nfs/nfs.flm nfs2.flm

2.Edit the nfs.cntl scripts (nfs1.cntl, nfs2.cntl). Do not modify the FILESYSTEMS section (leave it commented out), since the file systems are mounted and unmounted by the CFS packages. Specify the IP address for the package and the subnet to which the IP address belongs:

IP[0]=15.13.114.243

SUBNET[0]=15.13.112.0

This IP address is the relocatable IP address for the package. NFS clients that mount the file systems in the package use this IP address to identify the server.