Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy

Configuring the storage device for complex workload at the target disk site...............................34
Configuring the storage device using CFS or SG SMS CVM................................................34
Configuring the storage device using VERITAS CVM..........................................................34
Configuring the storage device using SLVM .....................................................................35
Configure the identical complex workload stack at the recovery site..........................................35
Halting the complex workload on the recovery site.................................................................35
Configuring the Site Controller package for the complex workload................................................35
Configuring Site Controller package using command line interface...........................................35
Configuring an empty Site Controller package..................................................................36
Configuring the Site Safety Latch dependencies for a complex workload..............................37
Modifying Site Controller to manage complex workload....................................................37
Starting the complex workload in the Metrocluster..................................................................38
4 Metrocluster Features................................................................................39
Cluster verification..................................................................................................................39
5 Understanding failover/failback scenarios...................................................43
Failover/failback scenarios in a Metrocluster package.................................................................43
Failure scenarios in a complex workload...................................................................................45
Site failover.......................................................................................................................46
Node failure and rejoining the cluster...................................................................................47
Network partitions across sites.............................................................................................47
Disk array and SAN failure.................................................................................................47
Replication link failure........................................................................................................47
Site Controller package failure.............................................................................................48
Site failure........................................................................................................................48
6 Administering a Metrocluster with 3PAR Remote Copy...................................49
Administering a cluster that uses Metrocluster 3PAR Remote Copy.................................................49
Viewing the Remote Copy volume group details.....................................................................49
Normal maintenance..........................................................................................................49
Remote Copy link failure and resume modes..........................................................................49
Restoring replication after a failover.....................................................................................50
Administering the SADTA configuration......................................................................................50
Maintaining a node...........................................................................................................50
Maintaining the site...........................................................................................................50
Moving the Site Controller package to a node at the local site.................................................50
Maintaining Site Controller package....................................................................................51
Deleting the Site Controller package.....................................................................................51
Starting a complex workload...............................................................................................52
Shutting down a complex workload......................................................................................52
Moving a complex workload to the remote site......................................................................52
Restarting a failed Site Controller package............................................................................53
Administering Metrocluster with Serviceguard Manager...............................................................53
Rolling upgrade......................................................................................................................53
Upgrading Metrocluster replication software..........................................................................54
Upgrading Metrocluster with SADTA configured.....................................................................54
Limitations of the rolling upgrade for Metrocluster...................................................................55
7 Troubleshooting........................................................................................56
Troubleshooting Metrocluster....................................................................................................56
Metrocluster log.................................................................................................................56
HP 3PAR storage system log................................................................................................56
Understanding Metrocluster package log messages................................................................56
Managing connections to 3PAR array...................................................................................60
Troubleshooting connectivity issues to HP 3PAR storage system.................................................60
Troubleshooting Metrocluster SADTA.........................................................................................60
4 Contents