Jim,

File system error 56 is "Invalid device specification" DBUNLOAD by default
will unload to device class TAPE. Is it possible that you don't have any
devices in class TAPE?

   :SHOWDEV TAPE

Also, why are you using DBUNLOAD to extract the data. There are probably a
dozen other/better ways to accomplish your task. If you supply a bit more
information to the list I'm sure you will get some good ideas.

Doug.

Doug Werth                             Beechglen Development Inc.
[log in to unmask]                               Cincinnati, Ohio

"James Haley" <[log in to unmask]> writes:

> We are attempting to DBUNLOAD a database from a very old HP3000. We are
not
> familiar with the HP 3000 or Image database system beyound some basic
> procedures that we have used successfully in the past. After entering the
> Data Base Name we receive a 'File Information Display' with Error Number:
> 56, Residue:0, Block Number:0, Numrec:0. Error 56 does not appear in the
> Quick Reference Guide list of errors, (the only Image manual remaining on
> site).
>
> Can you tell us what Error 56 means, and a possible solution?
>

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