Managing Serviceguard Sixteenth Edition, March 2009

List of Figures
1-1 Typical Cluster Configuration ....................................................................................29
1-2 Typical Cluster After Failover ....................................................................................31
1-3 Tasks in Configuring a Serviceguard Cluster ............................................................35
2-1 Redundant LANs .......................................................................................................40
2-2 Mirrored Disks Connected for High Availability ......................................................47
2-3 Cluster with High Availability Disk Array ................................................................48
2-4 Cluster with Fibre Channel Switched Disk Array......................................................49
2-5 Eight-Node Active/Standby Cluster ..........................................................................51
2-6 Eight-Node Cluster with XP or EMC Disk Array ......................................................52
3-1 Serviceguard Software Components...........................................................................54
3-2 Lock Disk or Lock LUN Operation.............................................................................64
3-3 Quorum Server Operation..........................................................................................66
3-4 Package Moving During Failover...............................................................................69
3-5 Before Package Switching...........................................................................................71
3-6 After Package Switching.............................................................................................72
3-7 Rotating Standby Configuration before Failover........................................................74
3-8 Rotating Standby Configuration after Failover..........................................................75
3-9 CONFIGURED_NODE Policy Packages after Failover...................................................76
3-10 Automatic Failback Configuration before Failover....................................................77
3-11 Automatic Failback Configuration After Failover......................................................78
3-12 Automatic Failback Configuration After Restart of Node 1.......................................79
3-13 Legacy Package Time Line Showing Important Events..............................................82
3-14 Package Time Line (Legacy Package).........................................................................84
3-15 Legacy Package Time Line for Halt Script Execution.................................................88
3-16 Cluster Before Local Network Switching ...................................................................95
3-17 Cluster After Local Network Switching .....................................................................96
3-18 Local Switching After Cable Failure ..........................................................................97
3-19 Aggregated Networking Ports..................................................................................105
3-20 Physical Disks Within Shared Storage Units.............................................................109
3-21 Mirrored Physical Disks............................................................................................110
3-22 Multiple Devices Configured in Volume Groups.....................................................110
3-23 Physical Disks Combined into LUNs........................................................................111
3-24 Multiple Paths to LUNs.............................................................................................112
3-25 Multiple Paths in Volume Groups.............................................................................112
4-1 Sample Cluster Configuration ..................................................................................125
5-1 Access Roles..............................................................................................................225
D-1 Running Cluster Before Rolling Upgrade ................................................................412
D-2 Running Cluster with Packages Moved to Node 2 ..................................................413
D-3 Node 1 Upgraded to new HP-UX version................................................................413
D-4 Node 1 Rejoining the Cluster ...................................................................................414
D-5 Running Cluster with Packages Moved to Node 1 ..................................................414
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