A fix is available
APAR status
Closed as program error.
Error description
This can cause mismatching comparisons on the device ranges causing confusion in the final report ANALYSIS: CBDMCRPR KNOWN IMPACT: HCD Bad IODF comparision report. VERIFICATION STEPS: Verify if APAR VM66445 is applied. PE Information: User's Affected: Users of the HCD compare reports who installed APAR VM66445: HCD71 UM35949, or APAR VM66445: HCD72 UM35948 Users are affected when creating HCD Compare Reports. User Impact: APAR VM66445 fixed the problem it reported but introduced a new problem. Users of the HCD Compare Reports may see wrong results, showing differences for objects that are in fact unchanged. Affected Reports are: - Esoteric Compare Report - Control Unit Compare Report - Channel Path Compare Report Users who need to configure an IBM z16, machine type 3931, can safely install and use VM66445. They should only be aware that HCD Compare Reports are unreliable until the fixing APAR VM66603 is installed. Local Fix: Remove / do not apply the offending PTF (if possible).
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of the HCD compare reports * **************************************************************** * PROBLEM DESCRIPTION: Several HCD Compare Reports produced * * wrong results, by showing differences * * for objects that are in fact unchanged. * * * * Affected Reports are: * * - Esoteric Compare Report * * - Control Unit Compare Report * * - Channel Path Compare Report * * * * PE Information: * * * * User's Affected: * * Users of the HCD compare reports * * who installed * * APAR VM66445: HCD71 UM35949, or * * APAR VM66445: HCD72 UM35948 * * * * Users are affected when * * creating HCD Compare Reports. * * * * SUPing PTFs are: * * HCD71: UM35960 * * HCD72: UM35959 * * * * User Impact: * * APAR VM66445 fixed the problem it * * reported but introduced a new problem. * * Users of the HCD Compare Reports may * * see wrong results, showing differences * * for objects that are in fact unchanged. * * * * Affected Reports are: * * - Esoteric Compare Report * * - Control Unit Compare Report * * - Channel Path Compare Report * * * * Users who need to configure an IBM z16, * * machine type 3931, can safely install * * and use VM66445. They should only be * * aware that HCD Compare Reports are * * unreliable until the fixing * * APAR VM66603 is installed. * * * * Local Fix: * * Remove / do not apply the * * offending PTF (if possible). * **************************************************************** Misleading information was shown in several HCD Compare Reports. This was caused by failing to extend (aliases of) internal data structures.
Problem conclusion
With this APAR, HCD lines up object ranges correctly. Unchanged objects are no longer incorrectly reported as differences.
Temporary fix
Comments
APAR Information
APAR number
VM66603
Reported component name
HCD/HCM
Reported component ID
568411219
Reported release
710
Status
CLOSED PER
PE
YesPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2022-04-12
Closed date
2022-07-20
Last modified date
2022-09-08
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UM35960
Modules/Macros
CBDMCONF CBDMCRPR CBDMIFIR CBDMMRDV CBDMSDPL CBDMSENV
Fix information
Fixed component name
HCD/HCM
Fixed component ID
568411219
Applicable component levels
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
08 September 2022