5.5

Example: Sharing SRM Licenses on a Shared Recovery Site
You connect two protected sites to a shared recovery site. You install a single SRM license on the shared
recovery site.
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If you protect 20 virtual machines on protected site A, you require a license for 20 virtual machines on
protected site A to recover these virtual machines to the shared recovery site.
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If you protect 10 virtual machines on protected site B, you require a license for 10 virtual machines on
protected site B to recover these virtual machines to the shared recovery site.
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You share a SRM license for 25 virtual machines between two SRM Server instances, C and D, on the
shared recovery site. The SRM Server instances on sites A and B connect to SRM Server instances C and
D respectively.
Because you have a license for 25 virtual machines on the shared recovery site, the total number of virtual
machines for which you can perform reprotect after a recovery is 25. If you recover all of the virtual
machines from sites A and B to the shared recovery site and attempt to perform reprotect, you have
sufficient licenses to reprotect only 25 of the 30 virtual machines that you recovered. You can reprotect all 20
of the virtual machines from site A to reverse protection from SRM Server C to site A. You can reprotect
only 5 of the virtual machines to reverse protection from SRM Server D to site B.
In this situation, you can purchase licenses for more virtual machines for the shared recovery site.
Alternatively, you can add the license keys from sites A and B to vCenter Server on the shared recovery site,
and assign the license from site A to SRM Server C and the license from site B to SRM Server D.
Install SRM In a Shared Recovery Site Configuration
To install SRM in a shared recovery site configuration, you deploy SRM Server on one or more protected
sites, and deploy a corresponding number of SRM Server instances on the shared recovery site.
You can only pair protected and recovery sites that have the same SRM extension ID.
Procedure
1 Install SRM Server on Multiple Protected Sites to Use with a Shared Recovery Site on page 87
You install SRM Server to use with a shared recovery site by running the SRM installer from the
command line with a custom setup option.
2 Install Multiple SRM Server Instances on a Shared Recovery Site on page 88
In a shared recovery site configuration, you can install multiple SRM Server instances that all extend
the same vCenter Server instance.
3 Install the SRM Client Plug-In In a Shared Recovery Site Configuration on page 88
After you install SRM Server instances on the shared recovery site, you must install the SRM client
plug-in.
4 Connect to SRM in a Shared Recovery Site Configuration on page 89
When you log in to SRM on a site on which more than one SRM Server is running, SRM prompts you
to select one of the SRM Server instances to which to connect.
5 Connect the SRM Sites in a Shared Recovery Site Configuration on page 90
In a shared recovery site configuration, you connect the SRM sites in the same way as for a standard
one-to-one configuration.
6 Configure Placeholders and Mappings in a Shared Recovery Site Configuration on page 90
When you configure placeholders and mappings in a shared recovery site configuration, the
customers of the shared recovery site can share the resources on the recovery site. Alternatively, you
can assign isolated resources to each customer.
Site Recovery Manager Installation and Configuration
86 VMware, Inc.