IXCH0532I
Valid parameters for CHECK(IBMXCF,XCF_SFM_CFSTRHANGTIME) are CFSTRHANGTIME(NO | cfstrhangtime) where cfstrhangtime is a decimal value between 0 and 1800 inclusive.

Explanation

The parameters for CHECK(IBMXCF,XCF_SFM_CFSTRHANGTIME) correspond to the possible Sysplex Failure Management (SFM) policy specifications describing the action to be taken if a coupling facility (CF) structure connector fails to provide an expected response. They are defined as follows:
CFSTRHANGTIME
Specifies the action to be taken if a CF structure connector fails to provide an expected response.
NO
The system is not to take automatic action to resolve the hang caused by the outstanding response. The check reports an exception if the SFM policy does not specify or default to CFSTRHANGTIME(NO).
cfstrhangtime
The maximum acceptable time in seconds that a connector's response is allowed to remain overdue (after message IXL040E or IXL041E has been issued) before the system acts to relieve the hang. The check will report an exception if the CFSTRHANGTIME value specified in the SFM policy is greater than the value specified by the CFSTRHANGTIME check parameter, or if the SFM policy specifies or defaults to CFSTRHANGTIME(NO).
Specify the parameters in an HZSPARM parmlib member or on a MODIFY HZSPROC command, for example:

   F HZSPROC,UPDATE,CHECK(IBMXCF,XCF_SFM_CFSTRHANGTIME),
       PARM='CFSTRHANGTIME(300)'

System action

The system continues processing.

Operator response

N/A

System programmer response

Specify parameters to ensure that the check reports an exception only when the SFM policy does not match the desired hang termination behavior. The default parameters are 'CFSTRHANGTIME(300)', selected so that the SFM policy specifies some limitation on the amount of time a CF structure-related process can remain hung due to an overdue connector response, yet provide the installation an opportunity to take manual action if desired.

Problem determination

N/A

Source

Parallel Sysplex® (XCF)

Module

IXCHCCPL

Routing code

N/A

Descriptor code

N/A

Reference Documentation

For a discussion of considerations in establishing the SFM policy, see "Controlling System Availability and Recovery through the SFM Policy" in z/OS MVS Setting Up a Sysplex.

For a description of the IXCMIAPU keywords used in defining the SFM policy, see "SFM Parameters for Administrative Data Utility" in z/OS MVS Setting Up a Sysplex.