URGENT Connectivity lost to host, console hung, attempt with telnet host actively drops connection

It works for a while then is inacessible, meaning trying to telnet to it or ssh a message comes back Host closed connection.  

Trying to log into console accepts username and password and hangs never giving shell back.   Had to restart server.  Hapening twice now.  I need some direction on what this could be!!!  Nothing in error -a  

URGENT
nsomeAsked:
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gheistCommented:
please post output of "oslevel -r" might be some IP stack DoS or whatever.

"errpt -a" - anything about portmapper ???

0
nsomeAuthor Commented:
I'm seeing this error.  Could lack of paging lock it up like this?!


---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 11:00:21 EDT
Sequence Number: 1876
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
ksh
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 11:00:21 EDT
Sequence Number: 1875
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
telnetd
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
---------------------------------------------------------------------------
LABEL:            PGSP_KILL
IDENTIFIER:      C5C09FFA

Date/Time:       Wed Apr 19 10:56:50 EDT
Sequence Number: 1874
Machine Id:      000179454C00
Node Id:         s2506-svr009
Class:           S
Type:            PERM
Resource Name:   SYSVMM          

Description
SOFTWARE PROGRAM ABNORMALLY TERMINATED

Probable Causes
SYSTEM RUNNING OUT OF PAGING SPACE

Failure Causes
INSUFFICIENT PAGING SPACE DEFINED FOR THE SYSTEM
PROGRAM USING EXCESSIVE AMOUNT OF PAGING SPACE

      Recommended Actions
      DEFINE ADDITIONAL PAGING SPACE
      REDUCE PAGING SPACE REQUIREMENTS OF PROGRAM(S)

Detail Data
PROGRAM
more
USER'S PROCESS ID:
           0
PROGRAM'S PAGING SPACE USE IN 1KB BLOCKS
           0
0
nsomeAuthor Commented:
Bumped paging up, will keep an eye on it.
0
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gheistCommented:
keep an eye on misbehaved program and limit it. swapping generally is bad.
0
nsomeAuthor Commented:
Could that have halted it that much that even console access was inhibited?
0
gheistCommented:
Excessive disk usage from excessive paging made it way too slow to be usable ( login could be taking 30 minutes for example)

use vmtune ( from bos.adt.samples if not present on your system) to adjust swap thresholds
0

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