Problem with overwriting subfile on another Vax node

[Martijn Nabben (Fairfax)]

We are in the process of migrating a variety of systems from Vax to Alpha.
The plan is to do a serial migration of one system after another.
There are online interfaces between these systems, where a program from the
first system reads and writes subfiles in another system's data directory.
 
In order to maintain this functionality we are currently trying to redefine
the logicals to point to the data directory on the other node. In other
words defining logicals on the Alpha that point to a data directory on the
Vax:
define RPY_DATA YAK::DKA100:[RPY.WKP.DATA]
 
For reading subfiles and writing brand new subfiles this seems to be working
fine, but when overwriting an existing subfile (using Quiz for instance),
the following error occurs:
 
> set subfile name rpy_data:inc-runs2 keep at emp-id
> go
*W* The permanent subfile RPY_DATA:INC-RUNS2 will be cleared.
*W* Data access error. (RPY_DATA:INC-RUNS2)
%RMS-F-FTM, network file transfer mode precludes operation (SQO set)

Our Vax Systems guy has checked all necessary access/privilege settings, but
they all seem to be alright.
 
Does this ring a bell with anybody? Please let me know if you need more
detailed info, that I haven't considered as important at this stage.
 
Alpha: OpenVMS V7.3-2 
Vax: OpenVMS V7.3
PowerHouse: 7.10G1
 
Thanks,
Martijn Nabben
Fairfax Media, Wellington, New Zealand
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