A fix is available
APAR status
Closed as program error.
Error description
improve DSN1COPY performance
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 for z/OS V8 and DB2 9 for z/OS * * utility users of DSN1COPY. * **************************************************************** * PROBLEM DESCRIPTION: Improve DSN1COPY I/O performance. * **************************************************************** * RECOMMENDATION: Apply corrective PTF when available. * **************************************************************** DSN1COPY isn't able to read or write a whole cylinder by a single I/O when processing a VSAM data set. This is a performance impact for DSN1COPY.
Problem conclusion
DSN1COPY has been changed to place the VSAM buffers above the line and thus provide enough buffer space for VSAM to read and write a whole cylinder by a single I/O.
Temporary fix
Comments
APAR Information
APAR number
PK78516
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
810
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-01-13
Closed date
2009-02-12
Last modified date
2009-03-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK43976 UK43977
Modules/Macros
DSN1COPY
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
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:
03 March 2009