Resynchronizing..........................................................................................................

194

Using the pairresync Command....................................................................................

195

Failback.....................................................................................................................

195

Timing Considerations.................................................................................................

196

Data maintenance with the failure of a Metrocluster with Continuous Access for P9000 and

 

XP Failover.................................................................................................................

196

Swap Takeover Failure (Asynchronous/Journal mode)......................................................

196

Takeover Timeout (for Continuous Access Journal mode)...................................................

196

PVOL-PAIR with SVOL-PSUS(SSWS) State (for Continuous Access Journal Mode)...................

197

Metrocluster with Continuous Access for P9000 and XP Device Group Monitor........................

197

P9000 or XP/Continuous Access Device Group Monitor Operation Overview.....................

197

Configuring the Monitor...............................................................................................

197

Configure the Monitor’s Variables in the Package Environment File.....................................

198

Configure Metrocluster with Continuous Access for P9000 and XP Device Group Monitor for

Modular Packages......................................................................................................

199

Configure Metrocluster with Continuous Access for P9000 and XP Device Group Monitor as

a Service of the Package..............................................................................................

199

Configuring the Metrocluster with Continuous Access for P9000 and XP Device Group Monitor

as a Service in the Site Controller Package.....................................................................

199

Troubleshooting the Metrocluster with Continuous Access for P9000 and XP Device Group

 

Monitor.....................................................................................................................

200

Completing and Running a Continentalclusters Solution with Continuous Access P9000 or XP.........

200

Setting up a Primary Package on the Source Disk Site...........................................................

200

Setting up a Recovery Package on the Recovery Cluster........................................................

203

Setting up the Continentalclusters Configuration...................................................................

205

Switching to the Recovery Cluster in Case of Disaster............................................................

206

Failback Scenarios...........................................................................................................

206

Scenario 1.................................................................................................................

206

Scenario 2.................................................................................................................

206

Failback in Scenarios 1 and 2......................................................................................

206

Failback when the Primary has SMPL Status....................................................................

207

Maintaining the Continuous Access P9000 and XP Data Replication Environment.....................

208

Resynchronizing..........................................................................................................

208

Using the pairresync Command....................................................................................

209

Some Further Points ....................................................................................................

209

4 Building Disaster Recovery Serviceguard Solutions Using Metrocluster with

 

Continuous Access EVA..............................................................................

211

Files for Integrating the EVA with Serviceguard Clusters..............................................................

211

Overview of EVA and Continuous Access EVA Concepts............................................................

212

Metrocluster with EVA and Data Replication........................................................................

212

DR Groups.................................................................................................................

213

DR Group Properties...............................................................................................

213

Log Disk.....................................................................................................................

214

Copy Sets.......................................................................................................................

215

Managed Sets.................................................................................................................

215

Failover..........................................................................................................................

215

Continuous Access EVA Management Software...................................................................

215

Preparing a Serviceguard Cluster for Metrocluster Continuous Access EVA ..................................

216

Setting up the Storage Hardware.......................................................................................

216

Cluster Configuration........................................................................................................

217

Management Server/SMI-S and DR Groups Configuration....................................................

217

Defining Management Server and SMI-S Information ...........................................................

218

Creating the Management Server List.............................................................................

218

Creating the Management Server Mapping File..............................................................

219

8Contents