() The backup database must be a multiple of 4 KB.

Details
Product: Exchange
Event ID: 438
Source: ESE
Version: 6.5.6940.0
Component: Microsoft Exchange Extensible Storage Engine
Message: <process name> (<process id>) <storage group name>The backup database <name> must be a multiple of 4 KB.
   
Explanation

The corruption of data may have occurred during the backup or restore process, causing the database file to be truncated to a size that is not a multiple of the size of this unit.

   
User Action

Try the restore process again. If the problem persists, then this backup may be corrupted and an earlier backup should be used.

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