SRDF recovery operations
This section describes recovery operations in 2-site SRDF configurations.
Planned failover (SRDF/S)
A planned failover moves production applications from the primary site to the
secondary site in order to test the recovery solution, upgrade or perform maintenance
at the primary site.
The following image shows a 2-site SRDF configuration before the R1 <-> R2
personality swap:
Figure 35 Planned failover: before personality swap
Production host
Remote host
Site BSite A
SRDF links -suspended
R1/R2 swap
Applications stopped
R1
R2
l
Applications on the production host are stopped.
l
SRDF links between Site A and Site B are suspended.
l
If SRDF/CG is used, consistency is disabled.
The following image shows a 2-site SDRF configuration after the R1 <-> R2
personality swap.
Remote replication solutions
SRDF recovery operations 137
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