Recovery Time Objective and Recovery Point Objective

For this testing, two key performance indicators (KPIs) were used to define the performance of the test scenarios:

• The Recovery Time Objective (RTO) is the duration of time within which the virtualized server must be restored to its service level after a disaster or other disruption to avoid a break in plant operations.

• A Recovery Point Objective (RPO) is defined in business continuity planning. It is the maximum tolerable period in which data from the virtualized server might be lost due to a major incident.

The RTO and RPO depend on factors of the host server such as storage I/O performance, CPU utilization, memory usage, and network usage at the time of failover/migration activity.

The following topics describe how RTO and RPO were measured for the MES middleware virtualized server configuration.