Disaster Recovery Metrics

Question 1

Mean Time To Repair (MTTR)

Answer 1

Average time to repair device when it breaks

Question 2

Mean Time Between Failures (MTBF)

Answer 2

Average time between when failures occur on a device

Question 3

Maximum Tolerable Downtime (MTD)

Answer 3

Longest period of time business can be inoperable without causing irrevocable business failures

Upper-limit on recovery time that systems must resume normal operations

Question 4

Recovery Time Objective (RTO)

Answer 4

Length of time after event to resume normal business operations and activities

Question 5

Recovery Point Objective (RPO)

Answer 5

Longest period of time organization can tolerate lost data being unrecoverable

How often you should set back-ups