Often there is a need to perform planned failovers or migrations between sites with a short interruption for cutover. The planned failover process assumes that all applications can be gracefully shutdown before ActiveDR failover is initiated again on the other site. The process for doing that would be:
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Gracefully stop the applications at the PROD site
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Stop Oracle databases on the PROD site
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Stop ASM instances on the PROD site
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Demote the PROD pod using the quiesce option
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Promote the DR pod
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If required, make the necessary changes to the network load balances/DNS server to redirect connections to the DR site
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Start ASM instances, rescan disks, make sure disk groups are mounted
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Start Oracle databases on DR site
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Start application processes
Note that we have used the quiesce option while demoting the PROD pod. The quiesce option tells ActiveDR to put the replica link into an idle state after all content has been sent to the target.