Administrator Guide

Table Of Contents
Topology Limitations for Volumes Associated with Multiple Replications
The following limitations apply to volumes that are associated with multiple replications.
Only one synchronous replication can be configured per source volume. Subsequent replications must be asynchronous.
For cascade mode (replications configured in series), only the first replication can be a synchronous replication. Subsequent
replications in the series must be asynchronous.
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.
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.
Prerequisites
You must be connected to a Data Collector to run or simulate a replication.
Steps
1.
Click the
HOME menu.
The Unisphere Central Home page is displayed.
If a Storage Center is selected from the drop-down list in Unisphere Central, click
(Home).
2. From the Data Mobility menu click Replications & Live Volumes.
3. (Optional) Filter the view by Storage Center.
a. In the Filters pane, select or clear check boxes next to the source and destination Storage Centers to show only
replications and Live Volumes of interest.
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Storage Center Replications and Live Volumes