The Exchange Store service in Exchange 2013 has been rewritten in such a way that each database now runs under its own process, thus preventing store issues to affect all databases in the server. Managed Store
is the new name for the rewritten Information Store process (
store.exe). It is now written in C#, designed to enable a more granular management of resources (additional I/O reduction, for example) and is even more integrated with the Exchange Replication service (
MSExchangeRepl.exe), in order to provide a higher level of availability.
The database engine continues to be ESE, but the mailbox database schema itself has changed in order to provide many optimizations.
The Managed Store is composed of two processes. The first one ...