private information store

What is Private Information Store?

One of the two databases in the information store on a computer running Microsoft Exchange Server. The private information store stores content for mailboxes homed on the server. It consists of a number of files stored in the \mdbdata directory on the Exchange server.

These files include the following:

• Priv.edb:
  The actual database file

   

• Edbxxxx.log:
  Transaction files used to track changes to the database

   

• Edb.chk:
  A checkpoint file to keep track of transactions in edbxxxx.log that are uncommitted

   

• Res1.log and Res2.log:
  Reserved log files used in low disk space conditions

   

• Temp.edb:
  A temporary file used for storing transactions that are in progress