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Storage Center Replication
Storage Center sites can be collocated or remotely connected and data can be replicated between sites.
Storage Center replication can duplicate volume data to another site in support a disaster recovery plan
or to provide local access to a remote data volume. Typically, data is replicated remotely as part of an
overall disaster avoidance or recovery plan.
The SCv2000 series Storage Center supports replication to other SCv2000 series Storage Centers.
However, an Enterprise Manager Data Collector must be used to replicate data between the storage
systems.
• For more information on installing an Enterprise Manager Data Collector, see the Dell Enterprise
Manager Installation Guide.
• For more information on managing the Data Collector and setting up replications, see the Dell
Enterprise Manager Administrator’s Guide.
Storage Center Communication
A Storage Center uses multiple types of communication for both data transfer and administrative
functions.
Storage Center communication is classified into three types: front end, back end, and system
administration.
Front-End Connectivity
Front-end connectivity provides IO paths from servers to a storage system and replication paths from
one Storage Center to another Storage Center. The SCv2000/SCv2020 provides three types of front-end
connectivity:
• Fibre Channel: Hosts, servers, or Network Attached Storage (NAS) appliances access storage by
connecting to the storage system Fibre Channel ports through one or more Fibre Channel switches.
Connecting host servers directly to the storage system without using Fibre Channel switches is not
supported.
When replication is licensed, the SCv2000/SCv2020 can use the Fibre Channel ports to replicate data
to another Storage Center.
• iSCSI: Hosts, servers, or Network Attached Storage (NAS) appliances access storage by connecting to
the storage system iSCSI ports through one or more Ethernet switches. Connecting host servers
directly to the storage system without using Ethernet switches is not supported.
When replication is licensed, the SCv2000/SCv2020 can use the iSCSI ports to replicate data to
another Storage Center
NOTE: If replication is licensed, the SCv2000/SCv2020 can use the embedded REPL port to
perform iSCSI replication to another SCv2000 series Storage Center.
If replication is licensed and the Flex Port license is installed, the SCv2000/SCv2020 can use the
embedded MGMT port to perform iSCSI replication to another SCv2000 series Storage Center.
In addition, the SCv2000/SCv2020 can use the embedded MGMT and REPL ports as front-end
iSCSI ports for connectivity to host servers when the Flex Port license is installed.
• SAS: Hosts or servers access storage by connecting directly to the storage system SAS ports.
NOTE: The front-end connectivity ports are located on the back of the storage system, but are
designated as front-end ports.
About the SCv2000/SCv2020 Storage System
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