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Conference vaxaxp::vmsnotes

Title:VAX and Alpha VMS
Notice:This is a new VMSnotes, please read note 2.1
Moderator:VAXAXP::BERNARDO
Created:Wed Jan 22 1997
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:703
Total number of notes:3722

420.0. "What is an NVA device?" by TPSYS::UCROW::BAIRD () Fri Apr 04 1997 16:27

    I am monitoring an application that deals with LAT (LTA) devices.
    Once in a while a different device type starting with the letters
    NVA pops up.  Sometimes, after that happens I start seeing error
    codes that LTA devices are no longer available.  At other times
    everything seems to be OK, that is LTA devices are still acquired
    as needed.
    
    Anyone got a guess as to what's happening here?
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420.1PSIXDELTA::HOFFMANSteve, OpenVMS EngineeringFri Apr 04 1997 18:0712
    DEVICE_DRIVER.MASTER indicates NV is owned by the PSI X.29 product
    on OpenVMS VAX, and the Alpha device driver registry indicates the
    same product owns the prefix on OpenVMS Alpha.

:    Anyone got a guess as to what's happening here?

    We need more information around the appliction activity, around the
    failure codes, around the OpenVMS platform and version, and information
    around the system event(s) that are occuring during the reported failures.
    (LAT questions are likely best addressed in the NOTED::LAT conference.)

420.2MARVIN::CARLINIMon Apr 07 1997 05:5219
>    I am monitoring an application that deals with LAT (LTA) devices.
>    Once in a while a different device type starting with the letters
>    NVA pops up.  Sometimes, after that happens I start seeing error
>    codes that LTA devices are no longer available.  At other times
>    everything seems to be OK, that is LTA devices are still acquired
>    as needed.

If you are dealing with LTA devices, how come you pick up NVA devices? What
characteristic(s) do you use to determine which devices to pick up?

What error code(s) are you seeing?

Are virtual terminals enabled?

>     Anyone got a guess as to what's happening here?

My guess is you have an application bug :-)

Antonio
420.3ThanksTPSYS::UCROW::BAIRDTue Apr 08 1997 16:2211
    re .1-
    
    Thanks, that's actually all I needed to know; that the devices are
    X.29 (X.25) devices.
    
    re .2- 
    
    Yes, you're right, there is an application bug :->(   With what I know
    now I can deal with it better :->)
    
       John