78
The Diagram shows what a migration with existing SRDF replication would look like after a create operation has been performed. This
is a configuration that closely resembles a regular cascaded SRDF environment. The main difference is that in a created state, the host
can access the R1 or the R21. In most SRDF environments, only the R1 or R2 can be written to, never both at the same time. The
exceptions to this are NDM and SRDF/Metro.
During an NDM migration, DR is preserved by configuring local and remote replication (SRDF and Snap/VX) when the NDM session
is in a CutoverSync state. The following diagram shows the configuration with existing SRDF replication and what the
environment looks like following the configuration of SRDF on the target volumes.
7
To Next Page
Loading...