Returning from data backups or replication after a possible disaster is everyone’s primary plan. However, the “Time” factor comes to the fore here. It is of great importance in how long the backup is taken and how long it takes to return to the replication. Therefore, RTO, RPO, and MTPD processes are processes that should be critically evaluated.
What is Recovery Time Objective (RTO)?
RTO is how long it takes to reactivate the system in the event of a possible disaster. In other words, it is the recovery time from the Backup. RTO with ISO 22301 Definition; The period after a breach event to resume delivery of the Product or service, restart the Activity, and recover Resources. Backup method, backup media and hardware play an effective role in this process.
What is the Recovery Point Objective (RPO)?
RPO is the time period between the time of the Disaster and the time when the last backup or replication was made. Since the data cannot be accessed within this period, it carries a very high risk. For example, let’s assume that you have a backup at 02:00 every night. If your system fails at 11:00 during the day, you will have a loss of 9 hours. If you only take 1 backup per day, your maximum RPO period is 24 hours. This is quite risky in critical systems.
What is Maximum Tolerable Period of Disruption (MTPD)?
It is the maximum time to endure a possible interruption in the business process or systems. If the possible downtime exceeds the defined MTPOD value, the institution will suffer serious damage. The damage can be financial as well as in terms of corporate reputation.
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