Healthcheck CHECK(IBMCS,CSVTAM_CSM_STG_LIMIT)

CHECK(IBMCS,CSVTAM_CSM_STG_LIMIT)
START TIME: 10/11/2007 14:54:56.822133
CHECK DATE: 20050901 CHECK SEVERITY: LOW
CHECK PARM: MAXECSA(100M),MAXFIX(100M)


ISTH001I CSM FIXED storage max 120M satisfies the owner specified limit
of 100M

* Low Severity Exception *

ISTH002E CSM ECSA storage max 92638K is less than owner specified
value 100M

Explanation: The Health Checker for z/OS check identified in the
preceding Health Checker message determined that the value specified
for the maximum CSM storage of the type specified as defined in the
CSM Parmlib member IVTPRM00 is less than the minimum value specified
for the check. An OWNER specified value is the default value
specified within z/OS Communications Server. An INSTALLATION
specified value is the value set by overriding the default value
using the IBM Health Checker for z/OS MODIFY command or specifying
an override value in the HZSPRMxx PARMLIB member. See Health Checker
for z/OS User's Guide, chapter 'Managing Checks' for a description
of how to override installation parameters. The preceding message
might be HZS0001I, HZS0002E, HZS0003E, or HZS0004I depending on the
SEVERITY and WTOTYPE attributes of the check. See the 'IBM Health
Checker for z/OS HZS messages' chapter of the IBM Health Checker for
z/OS User's Guide for more information on these messages.

System Action: The system continues processing. However, eventual
action might need to be taken to prevent a critical depletion of
CSM storage resources.

Operator Response: Contact the system programmer.

System Programmer Response: The default values in IVTPRM00 are 100M
for both FIXED and ECSA. However, IBM suggests that they initially
be coded at 120M MAX ECSA and 120M MAX FIXED. Monitor the system for
one week with DISPLAY CSM command to determine peak usage. Adjust
IVTPRM00 MAX ECSA and MAX FIXED values to 1.5 times the highest
value indicated in the DISPLAY CSM outputs. You must adjust your
IEASYSxx CSA parameter to include the additional amounts of ECSA
that CSM will be using. It is recommended that the CSA parameter in
IEASYSxx be at least 20% more than the ECSA value specified for CSM
use in IVTPRM00.

Problem Determination: Not Applicable

Source: z/OS Communication Server

Reference Documentation: n/a

Automation: n/a

Check Reason: CHECK CSM MAXECSA AND MAXFIX

ND TIME: 10/11/2007 14:54:56.911942 STATUS: EXCEPTION-LOW


1. A D CSM show
D CSM
IEE305I D COMMAND INVALID
2. A D NET,CSM shows
D NET,CSM
IVT5508I DISPLAY ACCEPTED
IVT5529I PROCESSING DISPLAY CSM COMMAND - OWNERID NOT SPECIFIED
IVT5530I BUFFER BUFFER
IVT5531I SIZE SOURCE INUSE FREE TOTAL
IVT5532I ------------------------------------------------------
IVT5533I 4K ECSA 556K 148K 704K
IVT5533I 16K ECSA 0M 256K 256K
IVT5533I 32K ECSA 64K 448K 512K
IVT5533I 60K ECSA 0M 240K 240K
IVT5533I 180K ECSA 0M 1080K 1080K
IVT5535I TOTAL ECSA 620K 2172K 2792K
IVT5532I ------------------------------------------------------
IVT5533I 4K DATA SPACE 31 0M 256K 256K
IVT5533I 16K DATA SPACE 31 0M 0M 0M
IVT5533I 32K DATA SPACE 31 0M 384K 384K
IVT5533I 60K DATA SPACE 31 0M 0M 0M
IVT5533I 180K DATA SPACE 31 0M 1800K 1800K
IVT5535I TOTAL DATA SPACE 31 0M 2440K 2440K
IVT5532I ------------------------------------------------------
IVT5533I 4K DATA SPACE 64 15188K 364K 15552K
IVT5533I 16K DATA SPACE 64 16K 752K 768K
IVT5533I 32K DATA SPACE 64 96K 928K 1M
IVT5533I 60K DATA SPACE 64 0M 0M 0M
IVT5533I 180K DATA SPACE 64 0M 360K 360K
IVT5535I TOTAL DATA SPACE 64 15300K 2404K 17704K
IVT5532I ------------------------------------------------------
IVT5535I TOTAL DATA SPACE 15300K 4844K 20144K
IVT5532I ------------------------------------------------------
IVT5536I TOTAL ALL SOURCES 15920K 7016K 22936K
IVT5538I FIXED MAXIMUM = 120M FIXED CURRENT = 22436K
IVT5541I FIXED MAXIMUM USED = 22436K SINCE LAST DISPLAY CSM
IVT5594I FIXED MAXIMUM USED = 22436K SINCE IPL
IVT5539I ECSA MAXIMUM = 92638K ECSA CURRENT = 3383K
IVT5541I ECSA MAXIMUM USED = 3383K SINCE LAST DISPLAY CSM
IVT5594I ECSA MAXIMUM USED = 3383K SINCE IPL
IVT5559I CSM DATA SPACE 1 NAME: CSM64001
IVT5559I CSM DATA SPACE 2 NAME: CSM31002
IVT5599I END

and the IVTPRMxx shows
FIXED MAX(120M)
ECSA MAX(120M)

So what drives this Healthcheck and how does it deal with 100MB which is below the
120MB by default?


Roland Schiradin
ALTE LEIPZIGER Lebensversicherung auf Gegenseitigkeit
IT Betrieb - DB/DC
Tel. (06171) 66-4095, Fax (06171) 66-7500-4095
mailto:SchiradinR@xxxxxxxxxxxxxxxxx
http://www.Alte-Leipziger.de

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