A fix is available
APAR status
Closed as program error.
Error description
An abend with the following title occurred during end restart . DSN ,ABND=0C4-0000003B,U=SYSOPR ,M=N ,C=111.BMC -DSNB1OPS,M=DSNTFRCV,LOC=DSNIDM .DSNB1OPP+521E . A multi-piece non-partitioned table space had received an open failure during restart log apply. Later, at end-restart there was a 'special' open for the same table space. However, the Piece Description entry (PDP) was modified by first open and restart provides only one PDP. So the same PDP was used for piece 0 and piece 1, modifying piece number. Later on special open, having piece number already set to 1 lead to the abend. . Saveflow: DSNTRSTE -> DSNIERST -> DSNB1OPS -> DSNB1OPP
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: DB2 users. * **************************************************************** * PROBLEM DESCRIPTION: ABEND0C4 in DSNB1OPP during end-restart * **************************************************************** * RECOMMENDATION: * **************************************************************** The abend may occur during a "special open" at end-restart, for a multi-piece non-partitioned pageset for which an open earlier in restart had failed. The problem is caused by the PDP (pageset piece block) being modified by the earlier open attempt. Restart builds only one PDP for a non-partitioned pageset, regardless of how many data sets it actually has, and the open will modify its piece number field as it processes subsequent datasets. If the initial open request fails, end-restart will attempt a "special open" using the same PDP, and the modified piece count can result in an ABEND0C4 in DSNB1OPP. The ABEND0C4 in DSNB1OPP will result in DB2 abnormal termination RC00D96001.
Problem conclusion
The pageset open logic has been modified to ensure that, for a non-partitioned pageset, the piece number is reinitialized.
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PI64565
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-06-21
Closed date
2016-07-13
Last modified date
2016-08-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI39369 UI39370
Modules/Macros
DSNB1OPP
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
Fix is available
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Document Information
Modified date:
02 August 2016