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8 Dell EMC SC Series: Disaster Recovery for Microsoft SQL Server Using VMware Site Recovery Manager | CML1018
1.1.2 Active/active site design
Site Recovery Manager also supports a similar design in which two sites exist, but both are actively providing
applications and services which are in scope for a comprehensive DR plan. In this design, each site functions
as an active site for production applications as well as a recovery location for the other active site.
Active/active site architecture with DSM available at both sites in the event of a disaster
1.2 Recovery point objective
Recovery point objective (RPO) is an industry-standard metric which identifies the recovery point or maximum
tolerance of data loss when a disaster recovery plan is executed. RPO is defined in a disaster recovery plan
itself for a given tier or data set and is subsequently used as a measurement tool to determine the success or
failure of an executed plan, whether test or actual. A variety of RPOs may exist for various tiers of
applications or data being recovered. RPO is typically measured in terms of hours or minutes. As an example,