Manualshelf

Administrator Guide

ManualsBrandsDell ManualsCompellent (SCStorage SCv2000
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Example: Two replications are created in parallel:
– Replication 1: Storage Center A → Storage Center B
– Replication 2: Storage Center A → Storage Center C
• Cascade mode: A source volume is replicated in series to multiple Storage Centers.
Example: Two replications are created in series:
– Replication 1: Storage Center A → Storage Center B
– Replication 2: Storage Center B → Storage Center C
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 congured per source volume. Subsequent replications must be asynchronous.
• For cascade mode (replications congured in series), only the rst 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
• Portable Volume replication is not supported
NOTE
: All replications require a Data Collector. When directly connected to a Storage Center, replication options are not
available.
522 Storage Center Replications and Live Volumes