If it's truly a filesystem you'll want to use exclude.fs (e.g. /usr /tmp
/home etc)

If it's not a filesystem (it's a directory) you'll want to use
VIRTUALMOUNTPOINT and then exclude.fs

The above methods will make it so the scheduler doesn't even scan the
directories and their subdir's. This may or may not make your backups run
faster if there are a lot of files in those directories. Since it's db2 I
suspect there aren't and in this case it probably won't have a huge impact
on speed.

Using normal excludes what you're probably after is:

exclude /db2/PRD/sapdata/.../*
exclude /db2/PRD/sapdata/*

The scheduler will still scan the directories and files since you're not
using an exclude.fs and it will still backup the directory structure however
it will NOT back up any files in the directory structure and that's what
most people are usually after.

Regards,

Gerald Wichmann
Senior Systems Development Engineer
Zantaz, Inc.
925.598.3099 (w)