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Problem with Opa0 on Alpha 1000 4/200

 
Guillou_2
Frequent Advisor

Re: Problem with Opa0 on Alpha 1000 4/200

I have two Alpha 1000 with this kind of problem, no firmware upgrade was done recently.Firmware version is V5.4-101 on both.

I can't remember special event that would have triggered this problem.

regards

Steph
Vladimir Fabecic
Honored Contributor

Re: Problem with Opa0 on Alpha 1000 4/200

Do you have >>> prompt after pressing HALT button?
In vino veritas, in VMS cluster
Allan Bowman
Respected Contributor

Re: Problem with Opa0 on Alpha 1000 4/200

You might want to try running a "keep-alive" DCL script from OPA0 immediately after a reboot. It can just be a simple loop that displays the time once a minute. This way you will be able to tell exactly when it stops working, and possibly make it keep working. See if the behavior is the same on the two consoles with the problem.

If this happens to be a valid workaround, you'll want to make the script a little fancier and shift the output a few characters for each display line so you don't get any screen burn.

Allan in Atlanta
Volker Halle
Honored Contributor

Re: Problem with Opa0 on Alpha 1000 4/200

Steph,

another alternative would just achieve the opposite:

Do not issue any IOs to the console port OPA0: by SET TERM/NOBROADCAST/PERM OPA0:

Volker.
Antoniov.
Honored Contributor

Re: Problem with Opa0 on Alpha 1000 4/200

Hi Guillou,
when console is unavaiable, do you see noowner after sho term opa0?
I remember, openVMS V6.2 had a problem when some process crashed while was writing on console. Opa0 was locked by noowner until system rebooted.
In my mind you have to disable all messages to console, such as operator.

Antonio
http://it.openvms.org
Antonio Maria Vigliotti
Guillou_2
Frequent Advisor

Re: Problem with Opa0 on Alpha 1000 4/200

Thanks all for your help

If I disable broadcasting on Opa0, will I still receive on system console information about startup, shutdown, crash, alarm from audit process, etc?

regards

Steph
Ian Miller.
Honored Contributor

Re: Problem with Opa0 on Alpha 1000 4/200

"If I disable broadcasting on Opa0, will I still receive on system console information about startup, shutdown, crash, alarm from audit process, etc?"

No.
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