Article ID: 232922 - View products that this article applies to.
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Microsoft Exchange 2000 Server supports multiple databases on each server. Information pertaining to Exchange Server databases that was stored in the registry in earlier versions of Exchange Server is now located in the Windows 2000 Active Directory (that is, database paths).
Exchange 2000 also adds support for multiple storage groups, as well as multiple instances of Extensible Storage Engine (ESE) on each server. Each instance of ESE manages log files for a particular storage group (databases within the same storage group share the same set of log files). There is also one reserved instance of ESE specifically for online backup and restore. This allows the backup and restore of a single Exchange 2000 database.
The following is a description of the log file's replay logic for a single database restore: