|Component:||Microsoft Exchange Extensible Storage Engine|
|Message:||<process name> (<process id>) <storage group name>File system error <error code> during IO on database <name>. If this error persists, the database file may be damaged and may need to be restored from a previous backup.|
A file system error was reported when doing input/output (I/O) operations.
If the error persists, the database file may be damaged. The database needs to be restored from a previous backup.