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Conference star::wizards

Title: "ASK THE WIZARDS"
Moderator:QUARK::LIONEL
Created:Mon Oct 30 1995
Last Modified:Mon May 12 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1857
Total number of notes:3728

1833.0. "Open: how to keep my system from hanging?" by STAR::JKEENAN () Thu May 01 1997 16:29

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Date: Thu, 1 May 1997 13:36:54 -0400
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From: "VMS001::WWW"@vms001.das-x.dec.com (01-May-1997 1337)
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Subject: Ask the Wizard: '[email protected]'
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Name: Theodore A Isabella
Email Address: [email protected]
CPU Architecture: Alpha
Version: V 6.2
Questions:

AlphaServer 2100 5/2100
CPU = 1
Main Memory = 768.00MB

Symptoms - Will see in OPCOM a queue - usually sys$batch is stopped.  When an attempt is made to start it
generates an error message of Insufficient Dynamic Memory.
If the condition is NOT "caught" in time then the system will "hang".  Meaning, users are not able to login,
cannot set host or Telnet to the machine either.  However, if a user has a Pathworks Drive mapped they are still
able to access it.  The machine i
s pingable and can also traceroute.
Have seen in the last two hangs a storm of TGV MultiNet messages in OPCOM where the machine has lost sight of IP
nodes.  Machine acts as a nameserver for this segment of the network - cache only nameserver.
Have had DEC hardware/software/tuning analyze, the conclusion is, it doesnt seem to be hardware related.  Did up
the Page Dyn to 3 million.
The only resolution is to reboot - is a production machine in a very controlled environment and imagine this will
get a bit old after a while.

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1833.1Contact CSCXDELTA::HOFFMANSteve, OpenVMS EngineeringFri May 02 1997 17:0314
   One needs to check the UCX (or TGV MultiNet, if that is the package
   is in use), to determine if there are any known problems similar to
   this, and any available ECO kits, and/or any more recent versions.

   One also needs to check the behaviour of security auditing, to
   determine what the local setting is for the behaviour of security
   auditing on resource starvation.

   This problem should be pursued via the customer support center.
   When this problem next occurs, acquire a system crashdump, and
   submit this in conjunction with a problem report, to the DIGITAL
   customer support center.