Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP A.11.00

7 Administering Metrocluster.........................................................................69
Administering a Metrocluster using Continuous Access XP/P9000 replication.................................69
Adding a node to Metrocluster............................................................................................69
Node maintenance............................................................................................................69
Planned maintenance.........................................................................................................69
Failback...........................................................................................................................70
Maintaining a cluster that uses Metrocluster with Continuous Access for P9000 and XP...............70
Viewing the progress of copy operations..........................................................................70
Viewing side file size.....................................................................................................70
Viewing the Continuous Access journal status....................................................................71
Viewing the pair and journal group information using the “ pairdisplay” command...............71
Viewing the journal volumes information using the “raidvchkscan” command........................71
Resynchronizing the device groups..................................................................................72
Using special options in the pairresync Command.............................................................72
Failback to the primary datacenter .............................................................................73
Factors affecting package startup time ............................................................................73
Data maintenance with the failure of a Metrocluster with Continuous Access for P9000 and
XP failover....................................................................................................................73
Swap takeover failure (asynchronous/journal mode)......................................................73
Takeover timeout for Continuous Access journal mode...................................................74
PVOL-PAIR with SVOL-PSUS(SSWS) state for Continuous Access journal mode...................74
Administering the SADTA configuration......................................................................................74
Maintaining a node...........................................................................................................74
Maintaining the site...........................................................................................................75
Maintaining the Metrocluster environment file........................................................................75
Moving the Site Controller package to a node at the local site.................................................75
Maintaining Site Controller package....................................................................................75
Deleting the Site Controller package.....................................................................................76
Starting a complex workload...............................................................................................76
Shutting down a complex workload......................................................................................77
Moving a complex workload to remote site...........................................................................77
Restarting a failed Site Controller package............................................................................77
Administering Metrocluster with Serviceguard Manager...............................................................77
Rolling upgrade......................................................................................................................78
Upgrading Metrocluster software.........................................................................................79
Upgrading Metrocluster with SADTA configured.....................................................................79
Limitations of the rolling upgrade for Metrocluster...................................................................81
Upgrading the P9000 or XP Raid Manager software for Metrocluster with Continuous Access for
P9000 and XP...................................................................................................................81
Other considerations on asynchronous mode..............................................................................81
8 Troubleshooting........................................................................................82
Troubleshooting Metrocluster....................................................................................................82
Metrocluster log file............................................................................................................82
Raid Manager log.............................................................................................................82
Troubleshooting the Metrocluster with Continuous Access for P9000 and XP device group
monitor.............................................................................................................................83
Troubleshooting Metrocluster SADTA.........................................................................................83
Logs and files....................................................................................................................83
Cleaning the site to restart the Site Controller package............................................................84
Identifying and cleaning RAC MNP stack packages that are halted..........................................85
Understanding Site Controller package logs..........................................................................85
9 Designing a Three Data Center Disaster Recovery Solution.............................91
Overview of Continuous Access 3DC Replication Technology.......................................................91
Benefits of 3DC DR Solution.....................................................................................................99
Contents 5