HP Serviceguard Toolkit for NFS manual Before Creating a Serviceguard NFS Package

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Installing and Configuring Serviceguard NFS

Before Creating a Serviceguard NFS Package

Before Creating a Serviceguard NFS Package

Before creating a Serviceguard NFS package, perform the following tasks:

1.Set up your Serviceguard cluster according to the instructions in the Managing Serviceguard manual.

2.On the primary node and all adoptive nodes for the NFS package, set the NFS_SERVER variable to 1 in the /etc/rc.config.d/nfsconf

file.

NFS_SERVER=1

Do not configure the 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.

3.If your NFS servers must serve PC clients, set the PCNFS_SERVER variable to 1 in the /etc/rc.config.d/nfsconf file on the primary node and each adoptive node.

PCNFS_SERVER=1

If you run the NFS monitor script, setting the PCNFS_SERVER variable to 1 will cause the monitor script to monitor the pcnfsd daemon. Then, if the pcnfsd daemon fails, your NFS package will fail over to an adoptive node. If you do not want to monitor pcnfsd, do not run the NFS monitor script, or set the PCNFS_SERVER variable to 0 and run pcnfsd manually from the command line.

4.If your NFS servers will also be NFS clients, set the START_MOUNTD variable to 1 in the /etc/rc.config.d/nfsconf file on the primary node and each adoptive node.

START_MOUNTD=1

If you configure rpc.mountd in the /etc/inetd.conf file, set the START_MOUNTD variable to 0. If the START_MOUNTD variable is set to 0, the NFS monitor script will not monitor the rpc.mountd process. If

Chapter 2

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Contents Edition Serviceguard NFS Toolkit A.11.11.04 Administrator’s GuideLegal 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 Pkg1 disks Simple Failover to an Idle NFS ServerPkg2 Disks Failover from One Active NFS Server to AnotherPackages Host Configured as Adoptive Node for MultipleCascading Failover with Three Adoptive Nodes NFS NFS Server-to-Server Cross MountingSupported 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 Readme Installing Serviceguard NFS Cmmakepkg -p /opt/cmcluster/nfs/nfs.conf Serviceguard NFS Toolkit Monitoring NFS/TCP Services withMonitoring 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 Basil Sage Example One Three-Server Mutual TakeoverThree-Server Mutual Takeover after One Server Fails Cluster Configuration File for Three-Server Mutual Takeover Package Configuration File for pkg01 Nfs.cntl Control Script NFS Control Scripts for pkg01Package Configuration File for pkg02 NFS Control Scripts for pkg02 Package Configuration File for pkg03 NFS Control Scripts for pkg03 Packages with File Lock Migration Example Two One Adoptive Node for TwoSage Basil Pkg02 VOLUMEGROUP/dev/nfsu01 VOLUMEGROUP/dev/nfsu02 Package Configuration File for pkg01 NFS Control Scripts for pkg01 Hanfs.sh Control Script Nfs.flm Script NFS File Lock Migration and Monitor Scripts for pkg01Package Configuration File for pkg02 NFS Control Scripts for pkg02 NFSFLMSCRIPT=$0%/*/nfs2.flm NFS File Lock Migration and Monitor Scripts for pkg02 Failover Example Three Three-Server CascadingCascading 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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