XCF_MAXMSG_NUMBUF_RATIO

Description:

Check each inbound signal path and ensure that each can support at least the indicated minimum number of messages from the sending system.

Reason for check:

It is recommended that each inbound signal path have enough buffer space to allow at least 30 messages to be received simultaneously.

z/OS® releases the check applies to:

z/OS V1R4 and later.

Parameters accepted:

The minimum number of XCF messages that an inbound XCF signal path should support to avoid message backup. (must be an integer in the range 1 to 999999)

User override of IBM values:

The following sample shows the defaults for customizable values for this check. Use this sample to make permanent check customizations in an HZSPRMxx parmlib member used at IBM Health Checker for z/OS startup. If you just want a one-time only update to the check defaults, omit the first line (ADDREPLACE POLICY) and use the UPDATE statement on a MODIFY hzsproc command. Note that using non-POLICY UPDATEs in HZSPRMxx can lead to unexpected results and is therefore not recommended. End of change

ADDREPLACE POLICY[(policyname)] [STATEMENT(name)]
UPDATE
CHECK(IBMXCF,XCF_MAXMSG_NUMBUF_RATIO) 
SEVERITY(MED) INTERVAL(004:00) DATE('date_of_the_change')
PARM('30') 
REASON('Your reason for making the update.')

Reference:

For more information, see z/OS MVS Setting Up a Sysplex.

Messages:

This check issues the following exception messages:

IXCH0443E
IXCH0206E

See the IXCH messages in z/OS MVS System Messages, Vol 10 (IXC-IZP).

SECLABEL recommended for MLS users:

SYSLOW