A fix is available
APAR status
Closed as program error.
Error description
Even after DEDB Alter - ALTERAREA has completed, 2GB of HVCOMMON storage was not released in D/S IMS. ESCD_BPND7R and ESCD_DATM have non-zero. On every second, DAS_CU7 routine in DBFDAS00 is called to cleanup these DTAM,BPND8,BPND7 and 64 bit storage in HVCOMMON. But DTAM and BPND7 were not released, because DATM_F1_DEL flag was not on and DATM_LB_64 is not equal to DATM_LE_64. Also BPND7_USED has non-zero. This is similar problem as PI71868 but happened in D/S IMS only. Additional Symptom; "DBFDAS00 case 5 DAS_CU7" WTO message issued on every second after DEDB Alter Utility completed if DA WTO ON by FP tool Kit.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * IMSFP V14 DEDB ALTER utility users. * **************************************************************** * PROBLEM DESCRIPTION: * * After DEDB Alter - ALTERAREA has completed, the * * HVCOMMON storage was not released in D/S IMS. * **************************************************************** * RECOMMENDATION: * * INSTALL CORRECTIVE SERVICE FOR APAR/PTF * **************************************************************** After DEDB Alter - ALTERAREA has completed, 2GB of HVCOMMON storage was not released in D/S IMS. The storage dump showed ESCD_BPND7R and ESCD_DATM were non-zero. The DAS_CU7 routine in DBFDAS00 was called every second to clean up the DTAM, BPND8, BPND7, and 64 bit storage in HVCOMMON. But DTAM and BPND7 were not released because DATM_F1_DEL flag was not on, DATM_LB_64 was not equal to DATM_LE_64, and BPND7_USED was non-zero. This problem is similar to the problem reported in PI71868 but happened in D/S IMS only.
Problem conclusion
DBFDAS00 has been enhanced. In phase 1 of DAS_CU7, if ESCDAWAQ is zeored, DAS_REL64 will be called to remove the BPND8 from the BPND7_USED chain and put the BPND8 onto the BPND7_FREE chain. This allows DAS_REL7 in phase 2 of DAS_CU7 to release the BPND8 on BPND7_FREE chain. DBFDAI10 has been modified to skip processing the AWE if ESCDAWAQ is zeroed.
Temporary fix
Comments
APAR Information
APAR number
PI74071
Reported component name
IMS V14
Reported component ID
5635A0500
Reported release
400
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-12-20
Closed date
2017-01-26
Last modified date
2017-02-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI74539 UI44273
Modules/Macros
DBFDAI10 DBFDAS00
Fix information
Fixed component name
IMS V14
Fixed component ID
5635A0500
Applicable component levels
R400 PSY UI44273
UP17/01/30 P F701
Fix is available
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Document Information
Modified date:
01 December 2023