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Verifying LLT, GAB, and cluster operation ...................................... 113
Verifying LLT ...................................................................... 114
Verifying GAB ...................................................................... 116
Verifying the cluster ............................................................. 117
Verifying the cluster nodes .................................................... 118
Chapter 7 Adding and removing cluster nodes .............................. 121
About adding and removing nodes ................................................. 121
Adding a node to a cluster ............................................................ 121
Setting up the hardware ........................................................ 122
Preparing for a manual installation when adding a node .............. 123
Installing VCS RPMs for a manual installation ........................... 124
Adding a license key ............................................................. 125
Setting up the node to run in secure mode ................................. 126
Configuring LLT and GAB ...................................................... 128
Adding the node to the existing cluster ..................................... 130
Starting VCS and verifying the cluster ...................................... 131
Removing a node from a cluster .................................................... 131
Verifying the status of nodes and service groups ........................ 132
Deleting the departing node from VCS configuration .................. 133
Modifying configuration files on each remaining node ................ 136
Removing security credentials from the leaving node ................. 136
Unloading LLT and GAB and removing VCS on the departing
node ............................................................................ 137
Chapter 8 Installing VCS on a single node ...................................... 139
About installing VCS on a single node ............................................ 139
Creating a single-node cluster using the installer program ................. 139
Preparing for a single node installation .................................... 140
Starting the installer for the single node cluster ......................... 140
Creating a single-node cluster manually ......................................... 141
Setting the path variable for a manual single node
installation ................................................................... 141
Installing the VCS software manually on a single node ................ 141
Renaming the LLT and GAB startup files .................................. 142
Modifying the startup files ..................................................... 142
Verifying single-node operation .............................................. 142
Adding a node to a single-node cluster ........................................... 143
Setting up a node to join the single-node cluster ......................... 144
Installing and configuring Ethernet cards for private
network ........................................................................ 144
Configuring the shared storage ............................................... 145
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