Sal,

No, not too simplistic.  The environment you seek is quite feasible using
file devclass volumes and built-in TSM features.  What isn't feasible today
is using this as the primary means to move all IT data offsite for disaster
recovery, unless you don't have a lot of data or you have free bandwidth.

It's simply a matter of speed of the communication link and cost.  While you
can move a file hundreds of miles in seconds, you can't move 500GB of
changed data hundreds of miles in seconds, minutes, or hours each day for a
reasonable price with current technology.  If the communications costs were
free, we'd all do this.

If you have a very small amount of changed data each day, this may be
feasible for you.

Bill Smoldt
STORServer, Inc.