A fix is available
APAR status
Closed as new function.
Error description
Apar to provide New Function for DSN1COMP
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 for z/OS V12 users of DSN1COMP * * against compressed data * **************************************************************** * PROBLEM DESCRIPTION: * * Enhance DSN1COMP to provide * * compression ratio estimation * * for compressed data. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** Enhance DSN1COMP to support input data file that contains compressed data.
Problem conclusion
1.The functionality of DSN1COMP utility is enhanced to support input file which contains compressed data. The process reads dictionary from input file and decompress record to generate uncompressed data. These generated uncompressed data then is used to build a new dictionary with Huffman and/or Fixed-length compression algorithm base on the specified input parameter. DSN1COMP would produce the space saving estimation report with different Db2 compression algorithms and provide disk saving information using input dictionary. 2.DSN1COMP is enhanced to remove message DSN19431 when the input data is compressed. In addition, DSN1944I message format has been enhanced to describe input data compression status, such as: - Input data set contains compressed data or non-compressed data - What compression algorithm was used in the input data file if data is compressed - How compression dictionary was generated in the input file The DSN1COMP output is also enhanced to provide disk saving information using input dictionary. 3.For more information about this enhancement, see the description of this APAR in the Db2 for z/OS documentation: https://www.ibm.com/support/knowledgecenter/SSEPEK_12.0.0/ ugref/src/tpc/db2z_utl_dsn1comp.html
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PH34808
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-02-24
Closed date
2021-04-02
Last modified date
2021-05-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI74741
Modules/Macros
DSN1COMP DSN1DCTE DSN1DCTB
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RC10 PSY UI74741
UP21/04/10 P F104 ¢
Fix is available
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Document Information
Modified date:
04 May 2021