Administrator Guide

Table Of Contents
Where to Go from Here............................................................................................................................................270
Promote an Inbound Replica Set to a Recovery Volume................................................................................................. 270
Recovery Volume Options.........................................................................................................................................271
Recovery Volume Restrictions...................................................................................................................................271
How to Handle a Failed Operation...................................................................................................................................271
Fail Back to the Primary Group.......................................................................................................................................272
Volume Failover and Failback..........................................................................................................................................272
Recover Data from a Replica ......................................................................................................................................... 273
About Data Recovery from a Replica........................................................................................................................273
About Permanently Promoting a Replica Set to a Volume.........................................................................................273
Permanently Promote a Replica Set to a Volume......................................................................................................274
About Failing Over and Failing Back a Volume.......................................................................................................... 275
About NAS Disaster Recovery........................................................................................................................................278
About NAS Replication............................................................................................................................................. 278
Recover from an Oine or Unavailable NAS............................................................................................................. 291
About Cloning Volumes.................................................................................................................................................. 295
Clone a Volume........................................................................................................................................................ 295
About Cloning an Inbound Replica............................................................................................................................295
Clone an Inbound Replica.........................................................................................................................................296
18 About Synchronous Replication................................................................................. 297
How Synchronous Replication Works............................................................................................................................. 297
Compare SyncRep and Traditional Replication................................................................................................................297
How Synchronous Replication Protects Volume Availability in Dierent Scenarios......................................................... 299
Normal Synchronous Replication Operation............................................................................................................. 299
SyncAlternate Volume Unavailable........................................................................................................................... 300
SyncActive Volume Unavailable................................................................................................................................ 301
Requirements for Using Synchronous Replication.......................................................................................................... 302
Synchronous Replication States..................................................................................................................................... 302
About System Snapshots and SyncRep......................................................................................................................... 303
Protected System Snapshots...................................................................................................................................303
Failback System Snapshots......................................................................................................................................303
About Synchronous Replication and Snapshots............................................................................................................. 303
Automatic Snapshot Creation.................................................................................................................................. 304
About Synchronous Replication Switches and Failovers.................................................................................................304
SyncRep SwitchesSyncRep Failovers...................................................................................................................... 304
About Synchronous Replication Volume Collections.......................................................................................................305
About Using Thin Clones and Templates with Synchronous Replication......................................................................... 306
Thin Clones..............................................................................................................................................................306
Templates.................................................................................................................................................................306
Congure Synchronous Replication (SyncRep) on a Volume.......................................................................................... 307
Disable Synchronous Replication (SyncRep) for a Volume..............................................................................................307
Monitor Synchronous Replication (SyncRep) Volumes................................................................................................... 307
Pause Synchronous Replication (SyncRep).................................................................................................................... 307
Resume Synchronous Replication (SyncRep).................................................................................................................308
Enable Synchronous Replication (SyncRep) for a Volume Collection..............................................................................308
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