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Dell Storage Manager 2020 R1 Administrator's Guide

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Planned vs Unplanned Disaster Recovery Activation

During disaster recovery activation, you may choose whether you want to allow planned DR activation. The following table displays some of the differences between planned and unplanned DR activation.

Planned DR Activation Unplanned DR Activation
The servers on the production site are shut down. The servers on the production site are not shut down.
The Storage Centers on the production site do not have to be shut down. The Storage Centers on the production site are shut down.
The source volume is no longer mapped to the server. The source volume is still mapped to the production servers.
You can copy any remaining data prior to activation, eliminating data loss. Data may be lost, depending on the recovery point objective (RPO).
The production site will not come back online while service has switched to the DR site. The production Storage Centers and the servers may come back online, creating the danger of a split brain.

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