Volume Replicator 7.4.2 Administrator's Guide - Windows
- Understanding Volume Replicator
- About Volume Replicator
- Basic Volume Replicator terms
- Building blocks of Volume Replicator
- Understanding replication in the Volume Replicator environment
- Modes of replication
- Understanding data flow in Volume Replicator asynchronous mode
- Managing data during failure and recovery
- Replication concepts
- About using Volume Replicator as a disaster recovery tool
- Understanding how Volume Replicator logs writes to the Replicator Log
- Understanding replication settings for a Secondary
- Measures to protect log overflow and replication latency
- Pausing the replication
- Synchronizing the Secondary
- Understanding Volume Replicator support for FlashSnap
- About Synchronized Snapshots
- Understanding Bunker replication
- Understanding Volume Replicator Support for TCP Multi-Connection
- About Volume Replicator memory monitoring and control support
- About Volume Replicator Graphs
- Setting up replication
- Security considerations for Volume Replicator
- Setting up replication using the Setup Replicated Data Set wizard
- Setting up the Bunker RVG for replication
- Using the VEA Console for Volume Replication Operations
- Monitoring replication
- Interpreting the information in the Volume Replicator views
- Monitoring replication using the VEA console
- Checking replication performance using vxrlink stats
- Administering Volume Replicator
- Adding volumes
- Administering the RVG
- Administering replication
- Managing checkpoints
- Pausing replication using Volume Replicator
- Creating snapshots for the data volumes
- Creating synchronized snapshots using the VSS Snapshot wizard
- Administering Bunker replication
- Performing disaster recovery operation
- Deleting Volume Replicator objects
- Accessing data on Secondary host
- Performing automated system recovery (ASR)
- Alternative methods to synchronize the Secondary faster
- Obtaining statistical information through Volume Replicator Graphs
- Using the command line interface
- Administering the RDS using the vxrds command
- Resizing the data volumes
- Displaying the network statistics for the RLINK
- Administering the RVGs using the vxrvg command
- Displaying information using the vxprint command
- Creating snapshots using the vxsnap command
- Administering replicated volumes using the vxvol command
- Displaying and changing replication ports using the vrport command
- Administering the RVG using the vxedit
- Administering the RVG using the vxassist command
- Tuning Volume Replicator
- Examples: Using the command line
- Example 1: Setting up replication using the command line interface
- Example 3: Using Bunker node for disaster recovery
- Example 4: Using synchronized snapshots to restore data
- Configuring Volume Replicator in a VCS environment
- Components of a VCS cluster
- Illustrating a highly available Volume Replicator setup
- How the agents work
- Configuring the agents
- Working with existing replication service groups
- Configuring Volume Replicator with Hyper-V
- Advanced settings in Volume Replicator
- Troubleshooting Volume Replicator
- Recommendations and checks
- Recovering from problems in a firewall or NAT setup
- Recovering from problems during replication
- Error when configuring the VxSAS Service
- Operation time-out errors
- Problems when configuring Volume Replicator in a VCS environment
- Problems when setting performance counters
- Appendix A. Services and ports
- Appendix B. Using the vxrsync utility
- Appendix C. VR Advisor (VRAdvisor)
Adding logs to dissociated volumes
When adding logs to dissociated volumes, the following error message is displayed:
The requested operation is not valid.
If you try to add a log to a volume that has been dissociated from the RDS, you may get the above error. The volume may already have a DCM log associated with it.
The DCM log may have got added when you had added this volume to the RDS with the Add DCM log to all selected volumes option selected. Now that the volume is dissociated from the RDS, if you try to add the DRL log to it you may get the error message given above, as DRL and DCM logs cannot exist together.
To find out the type of the log associated with the volume that you want to add; click on the volume name in the tree view. The right panel of the VEA displays the volume properties. Click the logs tab to see the type of log associated with the volume.
If you need to add the dissociated volume back to the RDS later, do not add DRL log to the volume. Otherwise, you can remove the DCM logs and add the DRL logs by using the options that you get when you select the volume and right-click on it.