Global catalog servers are responsible for keeping a fully writable copy of objects in its own domain and a partial copy of all other domains objects in the forest. It facilitates querying about objects in the entire forest. Global catalog service is part of the domain controller services, and it cannot be separated.
In a single-forest-single-domain environment, all the domain controllers can be global catalog servers as it will not be different from domain replication. But in a multi-domain environment, global catalog server placement involves planning as it increases the amount of data to be replicated and the bandwidth.
There are certain things that you need to consider when placing a global catalog server:
- Number of users: It is recommended that you place a global catalog server on any site that is over 100 users. This will help maintain site...
