Managing Serviceguard 11th Edition, Version A.11.16, Second Printing June 2004

15
Figures
Figure 1-1. Typical Cluster Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 1-2. Typical Cluster After Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 1-3. Monitoring with Serviceguard Manager . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 1-4. Serviceguard Manager Package Administration . . . . . . . . . . . . . . . . . . .29
Figure 1-5. Configuring with Serviceguard Manager . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 1-6. Tasks in Configuring an Serviceguard Cluster . . . . . . . . . . . . . . . . . . . . .33
Figure 2-1. Redundant LANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 2-2. Redundant FDDI Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Figure 2-3. Configuration with Dual Attach FDDI Stations . . . . . . . . . . . . . . . . . . . .41
Figure 2-4. Serial (RS232) Heartbeat Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 2-5. Mirrored Disks Connected for High Availability. . . . . . . . . . . . . . . . . . . .48
Figure 2-6. Cluster with High Availability Disk Array . . . . . . . . . . . . . . . . . . . . . . . .49
Figure 2-7. Cluster with Fibre Channel Switched Disk Array . . . . . . . . . . . . . . . . . .50
Figure 2-8. Root Disks on Different Shared Buses. . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Figure 2-9. Primaries and Mirrors on Different Shared Buses. . . . . . . . . . . . . . . . . .52
Figure 2-10. Eight-Node Active/Standby Cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Figure 2-11. Eight-Node Cluster with XP or EMC Disk Array . . . . . . . . . . . . . . . . . .56
Figure 3-1. Serviceguard Software Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Figure 3-2. Lock Disk Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Figure 3-3. Quorum Server Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Figure 3-4. Package Moving During Failover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Figure 3-5. Before Package Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Figure 3-6. After Package Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Figure 3-7. Rotating Standby Configuration before Failover . . . . . . . . . . . . . . . . . . .77
Figure 3-8. Rotating Standby Configuration after Failover. . . . . . . . . . . . . . . . . . . . .77
Figure 3-9. CONFIGURED_NODE Policy Packages after Failover . . . . . . . . . . . . . .78
Figure 3-10. Automatic Failback Configuration before Failover . . . . . . . . . . . . . . . . .79
Figure 3-11. Automatic Failback Configuration After Failover. . . . . . . . . . . . . . . . . .80
Figure 3-12. Automatic Failback Configuration After Restart of Node 1 . . . . . . . . . .80
Figure 3-13. Package Time Line Showing Important Events . . . . . . . . . . . . . . . . . . .86
Figure 3-14. Package Time Line for Run Script Execution . . . . . . . . . . . . . . . . . . . . .87
Figure 3-15. Package Time Line for Halt Script Execution. . . . . . . . . . . . . . . . . . . . .92
Figure 3-16. Cluster Before Local Network Switching . . . . . . . . . . . . . . . . . . . . . . .100