A fix is available
APAR status
Closed as program error.
Error description
"CSV0021 requests for module DLM$READ exceed maximum use count", which indicates that the module's CDE use count exceeded the system limit of 32,767. This typically occurs when a module is repeatedly loaded or referenced via LINK, XCTL, ATTACH,or LOAD macrosâ--implying that the DLM load module is being called excessively, likely due to the query execution pattern.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: ALL USERS * **************************************************************** * PROBLEM DESCRIPTION: PH70619 * * Error received, module DLM$READ * * exceeded maximum use count * **************************************************************** * RECOMMENDATION: APPLY PTF * **************************************************************** PH70619 Error received, module DLM$READ exceeded maximum use count
Problem conclusion
Temporary fix
Comments
APAR Information
APAR number
PH70619
Reported component name
DATA VIRT MGR Z
Reported component ID
5698DVM00
Reported release
120
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2026-03-20
Closed date
2026-05-29
Last modified date
2026-06-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
AVZCMQIO AVZMPREF AVZMREFP AVZODF9D AVZODF9N AVZODFAD AVZODFAN AVZODFBD AVZODFBN AVZODFCD AVZODFCN AVZODFDD AVZODFDN AVZOINSQ AVZSQ29D AVZSQ29N AVZSQ2BN AVZSQ2CN AVZSQ2DN AVZSQL9D AVZSQL9N AVZSQLBN AVZSQLCN AVZSQLDN
Fix information
Fixed component name
DATA VIRT MGR Z
Fixed component ID
5698DVM00
Applicable component levels
R120 PSY UO08065
UP26/06/03 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.
[{"Business Unit":{"code":"BU011","label":"Systems - zSystems software"},"Product":{"code":"SG19M"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"120"}]
Document Information
Modified date:
03 June 2026