HP Serviceguard Toolkit for NFS manual NFS Control Scripts for pkg01

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Sample Configurations

Example Four - Two Servers with NFS Cross-Mounts

NFS Control Scripts for pkg01

The nfs.cntl Control Script

This section shows the NFS control script (nfs1.cntl) for the pkg01 package in this sample configuration. Only the user-configured part of the script is shown; the executable part of the script and most of the comments are omitted.

PATH=/sbin:/usr/bin:/usr/sbin:/etc:/bin

VGCHANGE=”vgchange -a e”

# Default

CVM_ACTIVATION_CMD="vxdg -g \$DiskGroup set activation= exclusivewrite"

VG[0]=nfsu01

LV[0]=/dev/nfsu01/lvol1; FS[0]=/hanfs/nfsu011; FS_MOUNT _OPT[0]="-o rw"

VXVOL="vxvol -g \$DiskGroup startall" #Default

FS_UMOUNT_COUNT=1

FS_MOUNT_RETRY_COUNT=0

IP[0]=15.13.114.243

SUBNET[0]=15.13.112.0

function customer_defined_run_cmds

{

/etc/cmcluster/nfs/nfs1_xmnt start

remsh basil /etc/cmcluster/nfs/nfs1_xmnt start

}

The function customer_defined_run_cmds calls a script called nfs1_xmnt. This script NFS-mounts the file system exported by the package pkg01. If you configured the file system in the /etc/fstab file, the package might not be active yet when the servers tried to mount the file system at system boot. By configuring the NFS control script to NFS-mount the file system, you ensure that the package is active before the mount command is invoked.

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Chapter 3

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Contents Serviceguard NFS Toolkit A.11.11.04 Administrator’s Guide EditionLegal Notices Contents Index Figures Figures Overview of Serviceguard NFS Overview of Serviceguard NFS Limitations of Serviceguard NFS Overview of the NFS File Lock Migration Feature Overview of the NFS File Lock Migration Feature Supported Configurations Simple Failover to an Idle NFS Server Pkg1 disksFailover from One Active NFS Server to Another Pkg2 DisksHost Configured as Adoptive Node for Multiple PackagesCascading Failover with Three Adoptive Nodes Server-to-Server Cross Mounting NFS NFSSupported Configurations Starting File Lock Migration Starting the NFS ServicesHow the Control and Monitor Scripts Work Halting the NFS Services Monitoring the NFS Services On the Client Side Installing and Configuring Installing and Configuring Serviceguard NFS Installing Serviceguard NFS ReadmeCmmakepkg -p /opt/cmcluster/nfs/nfs.conf Monitoring NFS/TCP Services with Serviceguard NFS ToolkitMonitoring NFS/TCP Services with Serviceguard NFS Toolkit Before Creating a Serviceguard NFS Package NUMNFSD=10 Before Creating a Serviceguard NFS Package Mount -o nointr relocatableip/usr/src /usr/src Configuring a Serviceguard NFS Package Copying the Template Files Editing the Control Script nfs.cntl IP0=15.13.114.243 SUBNET0=15.13.112.0 Lower Etc/hosts file Configuring a Serviceguard NFS Package Editing the NFS Control Script hanfs.sh Netswitchingenabled Editing the File Lock Migration Script nfs.flm Configuring a Serviceguard NFS Package Editing the NFS Monitor Script nfs.mon Configuring a Serviceguard NFS Package Editing the Package Configuration File nfs.conf Configuring a Serviceguard NFS Package Configuring Server-to-Server Cross-Mounts Optional SNFS0=nfs1/hanfs/nfsu011CNFS0=/nfs/nfsu011 Configuring a Serviceguard NFS Package Run the cluster using the following command cmruncl -v-f Configuring a Serviceguard NFS Package Chapter Sample Configurations Sample Configurations Example One Three-Server Mutual Takeover Basil SageThree-Server Mutual Takeover after One Server Fails Cluster Configuration File for Three-Server Mutual Takeover Package Configuration File for pkg01 NFS Control Scripts for pkg01 Nfs.cntl Control ScriptPackage Configuration File for pkg02 NFS Control Scripts for pkg02 Package Configuration File for pkg03 NFS Control Scripts for pkg03 Example Two One Adoptive Node for Two Packages with File Lock MigrationSage Basil Pkg02 VOLUMEGROUP/dev/nfsu01 VOLUMEGROUP/dev/nfsu02 Package Configuration File for pkg01 NFS Control Scripts for pkg01 Hanfs.sh Control Script NFS File Lock Migration and Monitor Scripts for pkg01 Nfs.flm ScriptPackage Configuration File for pkg02 NFS Control Scripts for pkg02 NFSFLMSCRIPT=$0%/*/nfs2.flm NFS File Lock Migration and Monitor Scripts for pkg02 Example Three Three-Server Cascading FailoverCascading Failover with Three Servers after One Server Fails VOLUMEGROUP/dev/nfsu01 VOLUMEGROUP/dev/nfsu02 Package Configuration File for pkg01 NFS Control Scripts for pkg01 NODENAMEthyme NODENAMEsage NODENAMEbasil IP0=15.13.114.244 SUBNET0=15.13.112.0 Example Four Two Servers with NFS Cross-Mounts Thyme Basil Cluster Configuration File for Two-Server NFS Cross-Mount NODENAMEthyme NODENAMEbasil NFS Control Scripts for pkg01 SNFS0=nfs1/hanfs/nfsu011 CNFS0=/nfs/nfsu011 NODENAMEbasil NODENAMEthyme NFS Control Scripts for pkg02 SNFS0=nfs2/hanfs/nfsu021 CNFS0=/nfs/nfsu021 Index Index Default values
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