Author Archives: ismet

SMP/E HOLDERROR Processing in IBM System z Software Management

Recent discussions with some colleagues showed me that this is an area which requires some clarification. SMP/E (System Management Program/Extended) is the tool for performing maintenance on z/OS systems and System z components like DB/2, CICS, WAS etc. Program products … Continue reading

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Increasing Number of CHPIDs (Channel Path Identifiers) for LCUs (Logical Control Units)

The channel subsystem (CSS) and the IBM z/OS operating system need to know what hardware resources are available in the computer system and how these resources are connected. This information is called hardware configuration. Hardware Configuration Definition (HCD) provides an … Continue reading

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Suppressing CICS TD (Transient Data) Messages

Some CICS TS (Transaction Server) system messages written to TD queues tend to flood zOS JES spool. For example: DFHSN1400 07/19/2012 17:04:32 CICSPACK Session signon for session J1 by user CTGRUS is complete. DFHSN1500 07/19/2012 17:04:32 CICSPACK Session signoff for … Continue reading

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Automatic Deletion of TS (Temporary Storage) Queues for CICS TS v4.2

CICS TS (Customer Information Control System Transaction Server) is IBM’s general purpose TP (Transaction Processing) monitor, application server and a middleware for system z servers. During its regular operation, CICS utilizes TS queues for temporary storage requirements together with other … Continue reading

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Shortening z/OS Recycling Time

IBM System z server workloads are comprised of heterogeneous transaction types. DB2 queries, WAS (Websphere Application Server), Websphere MQ (Message Queueing oriented middleware), CICS TS, CTG (CICS Transaction Gateway), RDZ (Rational Developer for System z), IMS (Information Management System) transactions. … Continue reading

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Daylight Saving Time Settings in IBM Mainframes – IBM Büyük Sistemlerde Yaz Saati Uygulaması

Donanım ve yazılım platformlarında saatlerin ileri ve geri alınması genellikle otomatik olarak gerçekleşir. IBM büyük sistemlerde bu işlemler otomatik olarak yapılmaz.Önce zaman kavramlarını gözden geçirelim. Kullandığımız yerel saat, bulunduğumuz boylamın Greenwich kasabasından uzaklığıyla orantılı olarak belirlenmiştir. Greenwich kasabasındaki saate GMT … Continue reading

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Migration of System z Servers

In Memory of Levent Durdu Perfect friend, unfailing colleague, guiding leader we lost very early 1955 – 24 April 2008 Levent Durdu Anısına Erken yitirdiğimiz mükemmel dost, yorulmaz iş arkadaşı, yol gösterici lider 1955 – 24 Nisan 2008 Existing Environments … Continue reading

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