[Info-vax] What is MDMS and how do I fix this error?

[Stephen Hoffman]

On 2019-05-02 19:10:43 +0000, Bob said:

> I recently inherited an Alpha VMS 7.3-2 cluster from a former colleague.

Is this a production server, or is this a hobbyist server?   I'd assume 
the former, but there's been all sorts of old gear passed around among 
hobbyists.

Are there plans to support and keep this configuration current, or will 
this configuration remain static on this now-unsupported OpenVMS 
version?

VSI OpenVMS Alpha V8.4-2L2 is the current release, and support is 
available on "recent" Alpha systems.

HPE OpenVMS I64 will remain supported for a little less than two years, 
and HPE does not offer support for any version of OpenVMS Alpha.

> The following message has been filling the OPERATOR.LOG on all nodes:

I'd consider rotating the operator logs daily.

Purge out the older logs, archiving as necessary.

> %%%%%%%%%%%  OPCOM   7-APR-2019 00:26:08.65  %%%%%%%%%%%    (from node 
> QWERTY at  7-APR-2019 00:26:08.65)
> Message from user SYSTEM on QWERTY
> Event: Access Control Violation from: Node LOCAL:.QWERTY Session Control,
>         at: 2019-04-07-00:26:08.649-05:00Iinf
>         NSAP Address=49::00-01:AA-00-04-00-1E-04:21,
>         Source=UIC = [0,0]MDMS$SERVER,
>         Destination=name = MDMS$SERVER,
>         Destination User="",
>         Destination Account="",
>         Node Name=LOCAL:.QWERTY
>         eventUid   BD25C7C3-58CB-11E9-85E0-005056916A71
>         entityUid  8416B8C5-A625-11E8-8064-AA0004000304
>         streamUid  95300A07-A625-11E8-807A-AA0004000304

That's usually a failing attempt to use a DECnet proxy.  Looks like 
part of the backups is failing.  Or is no longer being used.

DECnet Phase IV host 1.30 seems involved.

Object 21 is not one I recognize off-hand, but may well be exactly this usage.

   Table 1 Object Type Numbers

   Number     Mnemonic  Description

   0          Task      User program
   1-16                 Reserved for HP use
   17         FAL       File Access Listener for remote file and
                        record access
   18         HLD       Host loader for RSX-11S downline task
                        loading requests
   19         NML       Network Management Listener Object
   20                   RSTS/E media transfer program (NETCPY)
   21-22                Reserved for HP use
   23         REMACP    Network terminal handler (host side)
   24                   Network terminal handler (terminal side)
   25         MIRROR    Loopback mirror
   26         EVL       Event receiver
   27         MAIL      OpenVMS Mail Utility
   28                   Reserved for HP use
   29         PHONE     OpenVMS Phone Utility and RSX-11M/M-PLUS
                        Phone Utility
   30-41                Reserved for HP use
   42         CTERM     Network terminal handler
   43-62                Reserved for HP use
   63         DTR       DECnet Test Receiver object
   64-127               Reserved for HP use
   128-255              Reserved for customer use


> These happen about every 30 minutes on each node in the cluster.

~48 messages a day times the cluster size shouldn't be a particular 
load, given daily log rotation and archiving.

> I'm not sure what MDMS is, but it seems to be connected with ABS / SLS.
> 
> Any suggestions on what the problem might be, or how to fix it?
> Any one know what MDMS is?

http://h30266.www3.hpe.com/odl/axplp/sysman/abs45/ABS044_CMD_GD.PDF




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