We are running a number of Windows XP PCs with MS Outlook (a mixture of Outlook XP and Outlook 2003) and a POP connection. The Outlook PST files are mostly stored on a Linux/qmail server so that they are backed up nightly with our other files. Backups are run using rsync to connect to a Clearlight portable hard drive using a USB connection. They are run in the middle of the night when local PCs are logged out or switched off.
This worked well until last December. Since then, the backup has had regular problems with PST files. On a frequent basis, but not nightly, the server crashes when backing up particular PST files. There are no error messages; the server response just grinds to a halt.
We have not been able to determine any pattern on when the crashes occur. It doesn’t always happen on the same file; there doesn't seem to be any link to file size or Outlook version.
We would really appreciate any ideas on how to solve this. At the moment we need to restart our server once or twice every week after a "backup crash".