40 min

Episode 33 "These Boots Were Made‪"‬ Mainframe, Performance, Topics Podcast

    • Technology

Episode 33 "These Boots Were Made"

What’s New


Preliminary z/OS 3.1 Upgrade materials
Python 3.1.1 zIIP enablemment OA63406 and PH52983

Mainframe -


Requires: z/OS V2.5 with PTFs, IBM z16 with microcode. Has both driving and target system requirements, use IBM.Function.ValidatedBoot FIXCAT.
Front end: Siging the in-scope artifacts (NUCLEUS, LPA, IPL Text, and SA Dump Text), z16 is not required here although z/OS V2.5 and PTFs are.
Back end: Verification of those signed in-scope artifacts. z16 with correct microcode level is required here (with z/OS V2.5 and PTFs).
Security set up work is required.

Performance - Open Data Sets, Part 2


Follow on, from Part 1 which was physical open and close of data sets as seen by z/OS.
This is about Db2 with the notion of logically Open and Closed data sets.
Its main role is to manage inter-Db2 read/write interest, for Datasharing efficiency purposes.
Two Db2 subsystem parameters have traditionally been used to control pseudoclose: PCLOSET and PCLOSEN. PCLOSEN is gone in V12 with APAR PH28280, as part of a DSNZPARM simplification effort. So PCLOSET would need adjusting down to whatever mimics PCLOSEN - in anticipation of this APAR or V13.

Topics - Messing With Digital Electronics


Martin explores his experiences with input devices (Stream Decks, Quick Keys, ...)
Martin has even built his own input devices: having an RFID card kick off automation, rotary encoders, USB Human Interface Device.

On the blog


Marna's blog
Martin's blogs

So It Goes

Episode 33 "These Boots Were Made"

What’s New


Preliminary z/OS 3.1 Upgrade materials
Python 3.1.1 zIIP enablemment OA63406 and PH52983

Mainframe -


Requires: z/OS V2.5 with PTFs, IBM z16 with microcode. Has both driving and target system requirements, use IBM.Function.ValidatedBoot FIXCAT.
Front end: Siging the in-scope artifacts (NUCLEUS, LPA, IPL Text, and SA Dump Text), z16 is not required here although z/OS V2.5 and PTFs are.
Back end: Verification of those signed in-scope artifacts. z16 with correct microcode level is required here (with z/OS V2.5 and PTFs).
Security set up work is required.

Performance - Open Data Sets, Part 2


Follow on, from Part 1 which was physical open and close of data sets as seen by z/OS.
This is about Db2 with the notion of logically Open and Closed data sets.
Its main role is to manage inter-Db2 read/write interest, for Datasharing efficiency purposes.
Two Db2 subsystem parameters have traditionally been used to control pseudoclose: PCLOSET and PCLOSEN. PCLOSEN is gone in V12 with APAR PH28280, as part of a DSNZPARM simplification effort. So PCLOSET would need adjusting down to whatever mimics PCLOSEN - in anticipation of this APAR or V13.

Topics - Messing With Digital Electronics


Martin explores his experiences with input devices (Stream Decks, Quick Keys, ...)
Martin has even built his own input devices: having an RFID card kick off automation, rotary encoders, USB Human Interface Device.

On the blog


Marna's blog
Martin's blogs

So It Goes

40 min

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