XADM: Relationship Between Storage Groups, Databases, and Transaction Logs

In Exchange 2000, you can now have multiple databases on a single server. If multiple databases are in the same storage group, they will share the same set of extensible storage engine (ESE) transaction log files.

The relationship is as follows:

• One set of ESE transaction log files for each storage group.
• Up to five databases for each storage group.
• One .stm file (Internet message stream format) for each database.
• One .edb file (MAPI message format) for each database.

NOTE: There is a maximum of five databases for each storage group, and a maximum of 4 storage groups for each Exchange 2000 server.