needed: tape migration

[Tod Pike]

I am looking for a UNIX utility to move unaccessed files from disk to
tape in a manner similar to the DEC TOPS-20 "MIGRATE" utility.  For
those not familiar with this utility, the major feature is that the
program automatically moves old files from disk, leaving behind a
(small) file containing a pointer to the tape the file was stored on,
thus making retrieval easier.  If anyone has written/seen/heard of such
a program, please mail me or post a pointer.  System details: UNIX 4.2
on a VAX 780.  Thanks.
				Tod Pike (PIKE at TL-20B.ARPA)
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