Managing HP Serviceguard A.11.20.20 for Linux, March 2014

4.8.13 Configuring a Package: Next Steps..........................................................................132
4.9 Planning for Changes in Cluster Size.................................................................................132
5 Building an HA Cluster Configuration........................................................135
5.1 Preparing Your Systems ...................................................................................................135
5.1.1 Installing and Updating Serviceguard .........................................................................135
5.1.2 Understanding the Location of Serviceguard Files.........................................................135
5.1.3 Enabling Serviceguard Command Access....................................................................136
5.1.4 Configuring Root-Level Access....................................................................................136
5.1.4.1 Allowing Root Access to an Unconfigured Node...................................................136
5.1.4.2 Ensuring that the Root User on Another Node Is Recognized..................................137
5.1.4.2.1 About identd.............................................................................................137
5.1.5 Configuring Name Resolution....................................................................................137
5.1.5.1 Safeguarding against Loss of Name Resolution Services.........................................139
5.1.6 Ensuring Consistency of Kernel Configuration ..............................................................140
5.1.7 Enabling the Network Time Protocol ..........................................................................140
5.1.8 Implementing Channel Bonding (Red Hat)...................................................................140
5.1.8.1 Sample Configuration........................................................................................140
5.1.8.2 Restarting Networking.......................................................................................141
5.1.8.3 Viewing the Configuration.................................................................................142
5.1.9 Implementing Channel Bonding (SUSE).......................................................................142
5.1.9.1 Restarting Networking.......................................................................................143
5.1.10 Setting up a Lock LUN.............................................................................................143
5.1.11 Setting Up and Running the Quorum Server................................................................145
5.1.12 Creating the Logical Volume Infrastructure ..................................................................145
5.1.12.1 Displaying Disk Information...............................................................................146
5.1.12.2 Creating Partitions...........................................................................................147
5.1.12.3 Enabling Volume Group Activation Protection......................................................148
5.1.12.4 Building Volume Groups: Example for Smart Array Cluster Storage (MSA 2000
Series).......................................................................................................................149
5.1.12.5 Building Volume Groups and Logical Volumes.....................................................150
5.1.12.6 Distributing the Shared Configuration to all Nodes...............................................150
5.1.12.7 Testing the Shared Configuration.......................................................................151
5.1.12.8 Storing Volume Group Configuration Data .........................................................152
5.1.12.8.1 Preventing Boot-Time vgscan and Ensuring Serviceguard Volume Groups Are
Deactivated...........................................................................................................152
5.1.12.9 Setting up Disk Monitoring................................................................................153
5.2 Configuring the Cluster....................................................................................................153
5.2.1 cmquerycl Options...................................................................................................154
5.2.1.1 Speeding up the Process....................................................................................154
5.2.1.2 Specifying the Address Family for the Cluster Hostnames.......................................154
5.2.1.3 Specifying the Address Family for the Heartbeat ..................................................154
5.2.1.4 Specifying the Cluster Lock.................................................................................155
5.2.1.5 Full Network Probing.........................................................................................155
5.2.2 Specifying a Lock LUN.............................................................................................155
5.2.3 Specifying a Quorum Server.....................................................................................155
5.2.4 Obtaining Cross-Subnet Information...........................................................................156
5.2.5 Identifying Heartbeat Subnets...................................................................................157
5.2.6 Specifying Maximum Number of Configured Packages ...............................................158
5.2.7 Modifying the MEMBER_TIMEOUT Parameter.............................................................158
5.2.8 Controlling Access to the Cluster...............................................................................158
5.2.8.1 A Note about Terminology................................................................................158
5.2.8.2 How Access Roles Work...................................................................................158
5.2.8.3 Levels of Access...............................................................................................159
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