A fix is available
APAR status
Closed as program error.
Error description
If a very large number of files are included in a group (more than 2000 at least), the activation/simulate report can be corrupted.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All IBM z/OS Data Set Mobility Facility * * 3.4.1 users who use ACTIVATE SIMULATE. * **************************************************************** * PROBLEM DESCRIPTION: ACTIVATE SIMULATE report contains * * garbled data when a large number of * * data sets is processed. * **************************************************************** * RECOMMENDATION: Apply the provided PTF. * **************************************************************** The problem occurs when a large list of data sets is selected, for example through the SOURCE INCLUDEDSN parameter. The routine that copies data into the report buffer supports a maximum length of 16 megabytes. Once the buffer exceeds that size, the length wraps, so the copy is incomplete or wrong.
Problem conclusion
The routine that copies data into the report buffer is modified to support buffers larger than 16 megabytes, so they are copied correctly.
Temporary fix
Comments
APAR Information
APAR number
OA69761
Reported component name
ZDMF
Reported component ID
ZDMF00001
Reported release
341
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2026-07-14
Closed date
2026-08-10
Last modified date
2026-08-14
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UJ10235
Modules/Macros
GZDACT5
Fix information
Fixed component name
ZDMF
Fixed component ID
ZDMF00001
Applicable component levels
R341 PSY UJ10235
UP26/08/14 I 1000
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:
14 August 2026