Unless you're in a Sysplex environment where these users may log on to
different systems, I would set my automount timeout to never de-mount the
automounted user HFS and then just let TSM backup all mounted HFS's. If a
user never logged on, there's no sense in backing up his HFS as it probably
never changed. This is the DURATION parameter in the /etc/u.map.

If they're logging on to different systems in the Sysplex, then maybe you'll
have to live with backing up the HFS files as a whole with DFDSS.

Maybe the error you're running into is security, or the filemasking in the
/etc/u.map file. The DSNAME of the HFS is determined by incorporating the
userid of who is currently logged on.

Bill Boyer
DSS, Inc.