Site Recovery Manager is based on an application server that runs on a Windows server, with its own database and a plug-in that connects it to vSphere clients. Each disaster recovery site must deploy an SRM host and a vCenter server. These servers may be deployed using physical servers or virtual machines. vCenter Server provides central visibility and control of all the SRM servers.
SRM has the following additional deployment requirements:
A trusted high-speed network connection between production sites and the disaster recovery site—not a dedicated link—to avoid VPN connections across the Internet
Array-based replication between recovery site and the protected site, using a replication adapter supported by SRM (see a full list).
The recovery site must have access to the same public and private IP networks as the protected site.
The recovery site must have sufficient hardware, storage and network resources to run VM workloads of the protected site.
You must ensure databases and other systems in your protected site are supported by Site Recovery Manager—see the full compatibility matrix.