What Is a Consistency Check?
A consistency check is a strategy used to harmonize data found on a computer system. The idea behind the check is to ensure that all data is synchronized between primary and secondary data groups, also known as protection groups and replicas. A consistency check may be configured to take place at designated times or implemented manually if there is suspicion of some type of conflict in data since the most recently completed check. Resolving internal conflicts is the main focus of a consistency check. Many systems include what is known as a data protection manager that reviews data in blocks, making sure the protection group and the replica are in harmony. In the event updates in data have occurred with the protection group but not the replica, the manager adds the updates to the secondary data group, resolving the conflict.
