[Info-vax] ODS-5 data/file recovery

[MG]

Recently, during a strangely botched file transfer via CIFS, a file was
somehow removed in the process (and wasn't successfully transferred
either, with nothing left as a result) and I don't seem to be able to
restore it through the usual methods (e.g. "DFU UNDELETE").

I've also tried to see what I could do, via "ANALYZE /DISK" and (later
also "/RMS", although the latter was rather pointless, as it's a Zip
file).

Are there any alternatives for data/file recovery?  Besides expensive
data recovery services.  It's an ODS-5 volume.  I'm for now making an
image back-up for the disk, I also noticed that I could see string of
the file (or filename, rather) that became 'lost' (whilst mounted
'foreign') and that may be a good starting point.

Any tips, advice, pointers and help are most welcome.

  - MG