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Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

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Concurrent BCVs with SRDF/AR

Set up concurrent BCVs if you need an independent copy of your data during a replication cycle.

  • One BCV copy is associated with the SRDF/AR device group and
  • The other BCV copy is not.

    The BCV not associated with the replication cycle receives the same data as the one associated with the SRDF/AR devices. This BCV can be accessed by its host during the symreplicate cycle.

Figure 1. Concurrent BCV in a multi-hop configuration

In the image above, Devices 0027 and 0039 are not part of the SRDF/AR copy cycle.

To access these devices from the production host during the SRDF/AR copy cycle, you must define separate device files on the host that include the standard R2 device and the R2 BCV on Hop 1 and Hop 2.

The device files are used to establish the BCV pairs, split BCV pairs, and access the BCV devices.

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