Ref: 10710051
Title: Problems with backup on Mac side
Date: 7/7/88

Copyright 3Com Corporation, 1991.  All rights reserved.

3+Mac 1.2 and on-line backups

There is a problem while accessing the server from a Macintosh using 3+
for Macintosh 1.2 or 3+ 1.2.1 Backup software doing on-line backups.

All versions of 3+Backup software prior to 1.2.2, which is shipped with
the 1.2.1 release of 3+ for Macintosh, will not back up ANY file (DOS or
Mac) that is open at the time Backup attempts to save it to tape.

We are able to store Macintosh files on our server by storing
Mac-specific information in extra, hidden support files. If any of these
support files are open, because you are performing an operation in that
directory which requires special handling for the Macintosh, at the time
Backup 1.2.1 or earlier sweeps through a directory the support file will
not be backed up to tape.  Without the Macintosh support files
corresponding to a Mac's resource and data forks, the Mac files in that
directory lose their identity as Mac files and become disjointed DOS
files,  and are thus inaccesible from a Mac, even though all of the
actual data is still on the server.

This bug has been fixed in Backup 1.2.2, and now the Macintosh support
files will be backed up to the tape. If for any reason they are not, an
error will be entered into the BACKUP_LOG.n file(s) in the 3PLUS\3BACKUP
directory.
