No database session was available to satisfy a request on database “”. The number of sessions configured via the Active Directory attribute msExchESEParamMaxSessions on the storage group maybe set too low for the level of activity on this storage group.The current value for this parameter is .

Details
Product: Exchange
Event ID: 1164
Source: MSExchangeIS
Version: 6.5.6940.0
Component: Microsoft Exchange Information Store
Message: No database session was available to satisfy a request on database “<name>“. The number of sessions configured via the Active Directory attribute msExchESEParamMaxSessions on the storage group maybe set too low for the level of activity on this storage group.The current value for this parameter is <value>.
   
Explanation

If the parameter msExchESEParamMaxSessions is not present in Active Directory, then it is calculated from the following attributes on the Exchange Information Store object:

msExchMaxPoolThreads (default value 4)

msExchMaxThreads (default value 100)

msExchBackgroundThreads (default value 57)

The number of sessions configured is: msExchMaxPoolThreads*number of processors)+msExchBackgroundThreads+(msExchMaxThreads*3/4).

   
User Action

Adjust these attributes to increase the number of available database sessions.

Related:

Leave a Reply