Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

Defining Storage Units......................................................................................................320
Creating and Exporting LVM Volume Groups .................................................................320
Creating VxVM Disk Groups ........................................................................................321
Configuring Modular Packages.....................................................................................322
Starting the Metrocluster Package...........................................................................................325
Administering a Cluster that Uses Metrocluster 3PAR Remote Copy..............................................325
Viewing the Remote Copy volume group details...................................................................325
Normal Maintenance.......................................................................................................325
Remote Copy Link Failure and Resume Modes.....................................................................326
Restoring replication after a failover...................................................................................326
Completing and Running a Continentalclusters Solution with 3PAR Remote Copy...........................326
Solution Overview for Continentalclusters using 3PAR Remote Copy........................................326
Setting up a primary and recovery packages when using 3PAR Remote Copy..........................327
Setting up the Continentalclusters Configuration...................................................................328
Switching to the Recovery Cluster in Case of Disaster............................................................328
Failback Scenarios...........................................................................................................329
Scenario 1.................................................................................................................329
Scenario 2.................................................................................................................330
Scenario 3.................................................................................................................330
Reconfiguring Recovery Group Site Identities in Continentalclusters after a Recovery.............330
Troubleshooting ...................................................................................................................331
Metrocluster Log..............................................................................................................331
HP 3PAR storage system log..............................................................................................331
Understanding Metrocluster Package Log Messages.............................................................331
Managing SSH connections to 3PAR array..........................................................................335
Connecting Problem to HP 3PAR storage system...................................................................335
Issues with the startrcopygroup command............................................................................336
7 Designing a Disaster Recovery Solution Using Site Aware Disaster Tolerant
Architecture..............................................................................................337
Overview of Site Aware Disaster Tolerant Architecture...............................................................337
Complex Workload Configuration......................................................................................337
Components of SADTA.....................................................................................................338
Site................................................................................................................................338
Oracle Clusterware Sub-cluster..........................................................................................339
Cluster File System and Cluster Volume Manager Sub-clusters.................................................339
Complex Workload Redundant Configuration......................................................................340
Site Controller Package.....................................................................................................341
Configuration.............................................................................................................341
Monitoring Complex Workload Packages.......................................................................342
Site Failover...............................................................................................................343
Site Safety Latch..............................................................................................................344
Configuring Complex Workloads using Site Aware Disaster Tolerant Architecture..........................344
Overview of SADTA Configuration......................................................................................345
Configuring a Complex Workload in SADTA.......................................................................345
Setting up Replication..................................................................................................345
Configuring Metrocluster with Sites................................................................................346
Creating a Serviceguard Cluster with Sites Configured................................................346
Configuring the Cluster File System Multi-node Package...............................................346
Easy deployment of Site-Aware Cluster and CFS Cluster Using cmdeploycl.....................346
Setting up the Complex Workload Redundantly in the Metrocluster....................................347
Configuring the Storage Device for the Complex Workload at the Source Disk Site.........347
Configuring the Complex Workload Stack at the Source Disk Site.................................351
Halting the Complex Workload at the Source Disk Site................................................352
Preparing the Replicated Disk at the Target Disk Site...................................................352
12 Contents