Management databases store installation information
In most organizations, there is only one management database for each audit installation and it stores information about the components of the auditing infrastructure for that installation. For example, the management database stores information about which computers are audited, where the collector service is installed, and the scope (site or subnet) of each audit store.
In most cases, you create the management database when you create a new installation and update it whenever you add components to the auditing infrastructure. For example, if you enable auditing on additional computers or deploy the collector service on a new server, the change is recorded in the management database. Because the management database stores information about the auditing infrastructure and not audited sessions, it requires little to no maintenance over time.