HP Serviceguard Toolkit for NFS manual Three-Server Mutual Takeover after One Server Fails

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Sample Configurations

Example One - Three-Server Mutual Takeover

 

Figure 3-2 shows the three-server mutual takeover configuration after

 

host basil has failed and host sage has adopted pkg02. Dotted lines

 

indicate which servers are adoptive nodes for the packages.

Figure 3-2

Three-Server Mutual Takeover after One Server Fails

thyme

pkg01

IP = 15.13.114.243

VG[0] = nfsu01

LV[0] = /dev/nfsu01/lvol1

FS[0] = /hanfs/nfsu011

XFS[0] = /hanfs/nfsu011

pkg02

IP = 15.13.114.244

VG[0] = nfsu02

LV[0] = /dev/nfsu02/lvol1

FS[0] = /hanfs/nfsu021

XFS[0] = /hanfs/nfsu021

pkg03

IP = 15.13.114.245

VG[0] = nfsu03

LV[0] = /dev/nfsu03/lvol1

FS[0] = /hanfs/nfsu031

XFS[0] = /hanfs/nfsu031

basil

sage

56

Chapter 3

Image 56
Contents Managing MC/ServiceGuard NFS A.11.23.02 EditionLegal 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 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 MC/ServiceGuard NFS Installing MC/ServiceGuard NFS ReadmeCmmakepkg -p /opt/cmcluster/nfs/nfs.conf Monitoring NFS/TCP Services with MC ServiceGuard NFS ToolkitChapter 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 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 Package configuration file nfs.conf default values
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