A fix is available
APAR status
Closed as new function.
Error description
NEW FUNCTION APAR
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users at HBB7790 and above * **************************************************************** * PROBLEM DESCRIPTION: New function APAR to provide an * * indicator in the IOBE of whether a * * cache miss occurred for a zHPF I/O * * request (ZHPF/K) * **************************************************************** * RECOMMENDATION: * **************************************************************** New function APAR to provide an indicator in the IOBE (IOSDIOBE) of whether a cache miss occurred for a zHPF I/O request.
Problem conclusion
Temporary fix
Comments
New function APAR to provide an indicator in the IOBE (IOSDIOBE) of whether a cache miss occurred for a zHPF I/O request. The following documentation updates will be made: . z/OS V2R1 MVS Data Areas Volume 3 (IEFALCXT -IRARENF1) (GA32-0937-02) . z/OS V2R2 MVS Data Areas Volume 2 (IAX -ISG) (GA32-0936-03) Update to the IOSDIOBE section IOBE Structure Mapping ---------------------- OFFSET HEX TYPE LENGTH NAME (DIM) DESCRIPTION ===== ================ ============== ======================= ... (13) BITSTRING 1 IOBEFLG4 Flag byte 4 1... .... IOBEZHPF "X80" zHPF channel program - used for EXCPVR and EXCP virtual requests | .1.. .... IOBECacheMiss "X40" One or more I/O | device cache misses | occurred during this | I/O operation. This | bit is valid only for | zHPF I/O requests. It | must be set to zero by | the driver. ... . z/OS DFSMSdfp Advanced Services (SC23-6861) Chapter 4 - Executing Your Own Channel Programs Topic - Input/Output Block Common Extension (IOBE) Fields Table - IOBE Structure Mapping Length or Offset Bit Pattern Name Description ------------------------------------------------------------ ... 19 1 IOBEFLG4 Flag byte 4 (X'13') 1... .... IOBEZHPF zHPF channel program - | used for EXCPVR and | EXCP virtual requests | .1.. .... IOBECacheMiss One or more I/O device | cache misses occurred | during this I/O | operation. This bit is | valid only for zHPF I/O | requests. It must be | set to zero by the | driver. ... KEYWORDS: ZHPF/K
APAR Information
APAR number
OA46474
Reported component name
IOS
Reported component ID
5752SC1C3
Reported release
790
Status
CLOSED UR1
PE
NoPE
HIPER
NoHIPER
Special Attention
YesSpecatt / New Function / Xsystem
Submitted date
2014-11-06
Closed date
2015-10-30
Last modified date
2016-11-22
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UA79595 UA79596
Modules/Macros
IOSDIOBE IOSVIRBA IOSVSSCQ
GA32093702 | GA32093603 | SC23686100 |
Fix information
Fixed component name
IOS
Fixed component ID
5752SC1C3
Applicable component levels
Fix is available
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Document Information
Modified date:
22 November 2016