Address Space TCB Structure

[ess...@juno.com]

.
Many Years ago I attended an MVS/XA structure and logic class.
.
In that class there were diagrams of the TCB Structure for Started Task, Batch Jobs, and TSO logon address space.
I'm talking about the address space TCB structure (Region Control Task, Dump Services, STC Control, etc.).
.
Are these diagrams available with z/OS. and if so where can I Find it ?
.
Paul
.
.

[Ed Jaffe]

You can use the MVS DUMP command to create an SVC dump for each of the
three different types of address spaces. Then, in IPCS:

1. Select option '2' (Analysis)

2. Select option '6i' (Level 2 Toolkit)

3. Select 'TCBMAP'


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[Lizette Koehler]

Try a google search on

IBM DIAGRAM TCB

Found lots of interesting images that might be what you are searching for

Lizette

[eclay buchanan]

There is a simple TCB overview figure in this old MVS/XA logic manual:
http://www.prycroft6.com.au/misc/download/GC28-1348-0_MVSXAoverview_Mar84OCR.pdf

There are other manuals that go into much detail about the many fields in the MVS TCB but this is one of the few "30,000" foot view diagrams that is actually useful on page 6-6. E.Clay

“All shall be well, and all shall be well and all manner of thing shall be well.” - Julian of Norwich

From: "ess...@juno.com" <ess...@JUNO.COM>
To: ASSEMBL...@LISTSERV.UGA.EDU
Sent: Sunday, June 17, 2018 7:48 AM
Subject: Address Space TCB Structure

[Charles Mills]

GREAT stuff!

This is good
http://idcp.marist.edu/pdfs/ztidbitz/31%20zNibbler%20%28zOS%20Control%20Bloc
ks%29.pdf (especially the very last diagram!).

Charles

[Lizette Koehler]

Yes they are

The Marist Collect doc is awesome.

And it is amazing what a few keywords can do in Google. ;-D

[Rob Scott]

If you have SDSF on z/OS 2.3, you can issue the "JT" action command against any address space to see its TCB/RB structure.

The display indents the fixed field TCB one character when it is a daughter of another TCB.

Rob Scott
Rocket Software

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From: IBM Mainframe Assembler List [mailto:ASSEMBL...@LISTSERV.UGA.EDU] On Behalf Of ess...@juno.com
Sent: Sunday, June 17, 2018 3:47 PM
To: ASSEMBL...@LISTSERV.UGA.EDU
Subject: Address Space TCB Structure

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