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I'm looking for an explanation, or a link to documentation of the on-disk structures of the Files-11 format, that is, the format of disks used by RSX-11 on the PDP-11. Also known as ODS-1, the precursor of the VMS format.
I've read that it was "published on the RSX SIG tapes a couple of times". That seem to be the tapes that are available under decus in a number of places, but I couldn't find the correct tape for that so far.
There are a couple of files at http://bitsavers.trailing-edge.com/pdf/dec/pdp11/rsx11/, e.g.
Andrew C. Goldstein, Files-11 On-Disk Structure Specification, First Edition, Digital Equipment Corporation, 19 June 1975
at
http://bitsavers.trailing-edge.com/pdf/dec/pdp11/rsx11/Files-11_ODS-1_Spec_Jun75.pdf
Andrew C. Goldstein, Files-11 On-Disk Structure Specification, Revised Edition, Digital Equipment Corporation, 15 June 1977
at
http://bitsavers.trailing-edge.com/pdf/dec/pdp11/rsx11/Files-11_ODS-1_Spec_Jun77.pdf
and
Andrew C. Goldstein, Files-11 On-Disk Structure Specification, Revised Edition, Digital Equipment Corporation, 15 April 1981
at
http://bitsavers.trailing-edge.com/pdf/dec/pdp11/rsx11/Files-11_ODS-1_Spec_Apr81.pdf
Do any of these help?
