Recovery Point Objective (RPO)
A recovery point objective (RPO) is the period for which recent data will be irretrievably lost in a disaster.
Extend of acceptable data loss
It’s called Recovery Point Objective or RPO.
RPO POINT is most concerned by data loss
RPO measures
RPO is usually measured in hours or days.
Recovery Time Objective
Recovery time objective (RTO) is the period from the onset of an outage until the resumption of service.
Extend of acceptable system downtime
It’s called Recovery Time Objective or RTO
RTO Time is for system downtime.
RTO measures
RTO is usually measured in hours or days.
What a RTO of 2 hours indicates
that organization needs to ensure that their system downtime should not exceed 2 hours.
What a RPO of 2 hours indicates
that organization needs to ensure that their data loss should not exceed 2 hours of data captured.
What should a RTO for a critical system be
Zero or near Zero
What should a RPO for a critical data be
Zero or near Zero
The lower RTO or RPO
The higher the cost of maintenance environment
What a low RTO or RPO indicates
That disaster tolerance is low. Therefore, if disaster tolerance is low, RTO/RPO should be low.
What is recommended when RTO is low
A mirrored site or hot site
What is recommended when RPO is low
Mirror imaging or real time replication for data back-up is recommended
What is recommended when RPO is zero
Synchronous data backup strategy to be used
The lower the time requirements for RTO & RPO
The higher, the cost of recovery strategies.
