Administrator Guide

Disaster Recovery Limitations for Volumes Associated with Multiple
Replications
The following disaster recovery limitations apply to volumes that are associated with multiple replications.
• Activating disaster recovery for a volume removes other cascade mode replications associated with the volume.
• Restoring a replication removes all other associated mixed mode replications.
Replications that are removed by disaster recovery must be manually recreated. To use the original destination volumes for the secondary
replications, remove the remote Storage Center mappings, then select the Use an Existing Volume check box when recreating the
replications.
Replication on SCv2000 Series Storage Systems
SCv2000 series storage systems have limited replication functionality. The following replication limitations apply to SCv2000 series
storage systems:
• Live Volume is not supported
• High Availability is not supported
• High Consistency is not supported
NOTE: All replications require a Data Collector. When directly connected to a Storage Center, replication options are not
available.
Replication Icons
The icons displayed for replications on the Storage tab of the Storage view indicate whether the volume is the source or destination of
the replication.
Icon
Description
The volume is the source for a replication to a remote Storage Center or the source volume in a copy, mirror, or migrate
relationship.
The volume is the destination for a replication from a remote Storage Center.
Simulating Replications
Simulated replications allow you to estimate requirements for replication and determine an optimal balance between volumes, snapshot
schedules, bandwidth schedules, and your recovery plan.
About this task
NOTE: For user interface reference information, click Help.
Simulate a Replication
Run a synchronous replication simulation to verify bandwidth requirements and optimal data movement.
Steps
1. Click the Storage view.
2. In the Storage pane, select the Storage Center that hosts the volume for which you want to simulate replication.
3. In the Summary tab, click Actions, then select Replication→ Simulate Replicate Volumes.
• If one or more QoS definitions exist, the Create Simulation Replication wizard appears.
• If a QoS definition has not been created, the Create Replication QoS wizard appears. Use this wizard to create a QoS definition
before you configure replication.
4. In the Simulate Volume(s) to Replicate table, select the volume(s) for which you want to simulate replication, then click Next. The
wizard advances to the next page.
5. (Optional) In the Replication Attributes area, modify default settings that determine how replication behaves.
Storage Center Replications and Live Volumes
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