Administrator Guide

Table Of Contents
Step 5B: The Activated DR Volume is Deactivated
After the replication from the activated DR volume to the original source volume is synchronized, Unisphere Central prompts the
administrator to halt IO to the secondary volume.
NOTE: IO must be halted before the destination volume is deactivated because the deactivation process unmaps the
volume from the server.
Figure 23. DR-Activated Volume is Deactivated
1. Source volume being recovered 2. Replication over Fibre Channel or iSCSI
3. Destination volume (activated) 4. Server mapping to activated DR volume (IO halted)
5. Server at source site (not mapped) 6. Server at DR site
Step 5C: The Source Volume is Activated
Unisphere Central prompts the administrator to deactivate and unmap the destination volume. The source volume resumes
replicating to the destination volume, and the source volume is activated and mapped to the server at the source site.
Figure 24. Recovered Source Volume is Activated
1.
Recovered and activated source volume 2. Replication over Fibre Channel or iSCSI
3. Destination volume (deactivated) 4. Server at source site mapped to recovered and activated
source volume
5. Server mapping removed from destination volume 6. Server at source site
7. Server at DR site
252 Storage Center DR Preparation and Activation