System information

Figure 7‑1. Site Recovery Manager Reprotect Process
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Site A
Protection
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Replica
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power off
Site B
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Direction of replication is reversed after a planned migration
Recovery site becomes
protected site
Protected site
becomes recovery
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How Site Recovery Manager Reprotects Virtual Machines with Array Based Replication on page 84
In the reprotect process with array based replication, Site Recovery Manager reverses the direction of
protection, then forces synchronization of the storage from the new protected site to the new recovery
site.
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How Site Recovery Manager Reprotects Virtual Machines with vSphere Replication on page 85
In the reprotect process using vSphere Replication, Site Recovery Manager reverses the direction of
protection, then forces synchronization of the storage from the new protected site to the new recovery
site.
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Preconditions for Performing Reprotect on page 85
You can perform reprotect only if you meet certain preconditions.
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Reprotect Virtual Machines on page 85
Reprotect results in the reconfiguration of Site Recovery Manager protection groups and recovery
plans to work in the opposite direction. After a reprotect operation, you can recover virtual machines
back to the original site using a planned migration workflow.
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Reprotect States on page 86
The reprotect process passes through several states that you can observe in the recovery plan in the
Site Recovery Manager plug-in in the vSphere Client.
How Site Recovery Manager Reprotects Virtual Machines with Array
Based Replication
In the reprotect process with array based replication, Site Recovery Manager reverses the direction of
protection, then forces synchronization of the storage from the new protected site to the new recovery site.
When you initiate the reprotect process, Site Recovery Manager instructs the underlying storage arrays to
reverse the direction of replication. After reversing the replication, Site Recovery Manager creates
placeholder virtual machines at the new recovery site, which was the original protected site before the
reprotect.
When creating placeholder virtual machines on the new protected site, Site Recovery Manager uses the
location of the original protected virtual machine to determine where to create the placeholder virtual
machine. Site Recovery Manager uses the identity of the original protected virtual machine to create the
placeholder. If the original protected virtual machines are no longer available, Site Recovery Manager uses
the inventory mappings from the original recovery site to the original protected site to determine the
resource pools and folders for the placeholder virtual machines. You must configure inventory mappings on
both sites before running the reprotect process, or the process might fail.
When reprotecting virtual machines with array-based replication, Site Recovery Manager places the files for
the placeholder virtual machines in the placeholder datastore for the original protected site, not in the
datastore that held the original protected virtual machines.
Site Recovery Manager Administration
84 VMware, Inc.