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The Question is:
I have an application running on VAX4705A which uses ACMS and cobol programs
using TDMS forms. he backend database is Oracle Rdb V7.0-12 which is also at
same node.
We want to migrate the application to Alpha. As far as I know TDMS is not
available on Alpha.
Is it possible to use distributed ACMS with the Menus and TDMS forms on VAX and
the RDB, EXE's,TASks, group and other ACMS components on APLHA ?.
The Answer is :
Yes, you can. The RLBs have to be on the OpenVMS Alpha system to
satisfy the startup of the application, but the forms processing
will be done on OpenVMS VAX front-ends.
You will have to recompile all the server objects on OpenVMS Alpha
and you will have to re-link the server images. Ensure that your
recompilations specify 'no alignment', otherwise the compilations
on the OpenVMS Alpha systems will naturally align the data, and this
will not match the byte alignment typically used on OpenVMS VAX compilers.
(The 'no alignment' tells the compilers to use byte alignment.)
You will only want to use byte alignment on those modules which will
be "sharing" the access -- data that is not naturally aligned will
tend to degrade performance on OpenVMS Alpha systems and (to a somewhat
lesser extent even) OpenVMS VAX systems.
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