HP Serviceguard Toolkit for NFS manual Contents

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Contents

1. Overview of MC/ServiceGuard NFS

Limitations of MC/ServiceGuard NFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Overview of the NFS File Lock Migration Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Supported Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Simple Failover to an Idle NFS Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Failover from One Active NFS Server to Another . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 A Host Configured as Adoptive Node for Multiple Packages . . . . . . . . . . . . . . . . . . . 15 Cascading Failover with Three Adoptive Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Server-to-Server Cross Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 How the Control and Monitor Scripts Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Starting the NFS Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Starting File Lock Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Halting the NFS Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Monitoring the NFS Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 On the Client Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2. Installing and Configuring MC/ServiceGuard NFS

Installing MC/ServiceGuard NFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Monitoring NFS/TCP Services with MC/ ServiceGuard NFS Toolkit. . . . . . . . . . . . . . 27 Before Creating an MC/ServiceGuard NFS Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Configuring an MC/ServiceGuard NFS Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Copying the Template Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Editing the Control Script (nfs.cntl) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Editing the NFS Control Script (hanfs.sh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Editing the File Lock Migration Script (nfs.flm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Editing the NFS Monitor Script (nfs.mon) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Editing the Package Configuration File (nfs.conf) . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Configuring Server-to-ServerCross-Mounts (Optional) . . . . . . . . . . . . . . . . . . . . . . . 48 Creating the Cluster Configuration File and Bringing Up the Cluster. . . . . . . . . . . 51

3. Sample Configurations

Example One - Three-Server Mutual Takeover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Cluster Configuration File for Three-Server Mutual Takeover . . . . . . . . . . . . . . . . . 57 Package Configuration File for pkg01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 NFS Control Scripts for pkg01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Package Configuration File for pkg02 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 NFS Control Scripts for pkg02. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Package Configuration File for pkg03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

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Contents Edition Managing MC/ServiceGuard NFS A.11.23.02Legal Notices Contents Index Figures Figures NFS Overview of MC/ServiceGuard NFS Limitations of MC/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 the NFS Services How the Control and Monitor Scripts WorkStarting File Lock Migration Halting the NFS Services Monitoring the NFS Services On the Client Side Installing and Configuring Installing and Configuring MC/ServiceGuard NFS Readme Installing MC/ServiceGuard NFSCmmakepkg -p /opt/cmcluster/nfs/nfs.conf ServiceGuard NFS Toolkit Monitoring NFS/TCP Services with MCChapter Before Creating an MC/ServiceGuard NFS Package NUMNFSD=10 Before Creating an MC/ServiceGuard NFS Package Mount -o nointr relocatableip/usr/src /usr/src Configuring an MC/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 an MC/ServiceGuard NFS Package Configuring an MC/ServiceGuard NFS Package Editing the NFS Control Script hanfs.sh Netswitchingenabled Editing the File Lock Migration Script nfs.flm Configuring an MC/ServiceGuard NFS Package Editing the NFS Monitor Script nfs.mon Editing the Package Configuration File nfs.conf Configuring an MC/ServiceGuard NFS Package Configuring Server-to-Server Cross-Mounts Optional SNFS0=nfs1/hanfs/nfsu011CNFS0=/nfs/nfsu011 Configuring an MC/ServiceGuard NFS Package Run the cluster using the following command cmruncl -v-f Configuring an MC/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 Package configuration file nfs.conf default values
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