You can deploy Site Recovery Manager in a topology in which multiple vCenter Server instances share a Platform Services Controller on each site.

In this configuration, the Platform Services Controller instances are external to the vCenter Server instances.

The Platform Services Controller instances can belong to vCenter Single Sign-On domains that are either in Enhanced Linked Mode or are not in Enhanced Linked Mode.

Site Recovery Manager in a Two-Site Topology with Two vCenter Server Instances per Platform Services Controller
Site Recovery Manager in a two-site topology with two vCenter Server Instances per Platform Services Controller