Mac Srv: Server May Stop Operating When Run with Tape Backup (99304)
The information in this article applies to:
- Microsoft Mail for AppleTalk Networks 2.0
- Microsoft Mail for AppleTalk Networks 3.0
- Microsoft Mail for AppleTalk Networks 3.1
This article was previously published under Q99304 SYMPTOMS
If a tape backup device or software is installed on the same Macintosh as
the server for version 2.0, 3.0, or 3.1 of Microsoft Mail for AppleTalk
Networks, the server may stop operating at startup or at the time the
backup is taking place.
CAUSE
Because both the Mail server and the tape backup process are CPU intensive,
neither wants to give up processor time to the other. Consequently, if the
tape backup is running at the time the Mail server attempts to process
information, the Mail server may stop operating.
Likewise, if the Mail server interrupts the tape backup at the time it is
writing data to the tape drive, a bad write may occur and the backup data
could be corrupt.
RESOLUTION
Move either the tape backup unit or the Mail server software to a different
Macintosh. For detailed instructions on moving a Microsoft Mail Server,
refer to chapter two of the "Network Manager's Guide."
MORE INFORMATION
Most mail servers are classified as "interrupt driven" applications. This
refers to the fact that a mail server is interrupted with requests from
users, other servers, or its own internal processes. Backup systems write
in a continuous data stream to the backup device. If a mail server
interrupt is processed by the server, it is possible for the backup system
to incorrectly write information, which will cause a corrupt copy of the
data.
| Modification Type: | Major | Last Reviewed: | 11/9/1999 |
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| Keywords: | KB99304 |
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