Actually, no.  There are 3 requirements for using JSCTB=YES on an attach 
macro, the first is that you have to be authorized, the second is that you 
have to have NO subtasks that have been attached without JSTCB=YES 
specified and the third is that you must be a JOB STEP TCB.   Also,once 
you have a JSTCB=YES subtask running you cannot attach any subtasks with 
JSTCB=NO specified.  Look at the return codes from ATTACH in the 
Authorized Services Reference, in particular RC=14 and RC=18 for more 
details..

===============================================
Wayne Driscoll
OMEGAMON DB2 L3 Support/Development
wdrisco(AT)us.ibm.com
===============================================



From:
Micheal Butz <[email protected]>
To:
[email protected]
Date:
10/23/2011 12:04 AM
Subject:
Re: z/OS Control block question
Sent by:
IBM Mainframe Discussion List <[email protected]>



Cann't a Authorized program do a ATTACH JSTCB=YES 

anytime 


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On 
Behalf
Of Wayne Driscoll
Sent: Saturday, October 22, 2011 8:29 PM
To: [email protected]
Subject: Re: z/OS Control block question

Please explain how "all TCB's under a given JSTCB will point to the same 
TIOT" is incorrect, but "every TCB with the same TCBJSTCB will normally 
have the same TIOT" is true, when the two statements make the same point? 

===============================================
Wayne Driscoll
OMEGAMON DB2 L3 Support/Development
wdrisco(AT)us.ibm.com
===============================================



From:
"Shmuel Metz (Seymour J.)" <[email protected]>
To:
[email protected]
Date:
10/22/2011 06:28 PM
Subject:
Re: z/OS Control block question
Sent by:
IBM Mainframe Discussion List <[email protected]>



In
<of23f0c2c5.ab17dd83-on8625792f.0052d8f0-8625792f.0052e...@us.ibm.com>,
on 10/20/2011
   at 10:05 AM, Wayne Driscoll <[email protected]> said:

>but all TCB's under a given JSTCB will point to the same TIOT.

Actually not. There will generally be more than one JSTCB. What is
true is that every TCB with the same TCBJSTCB will normally[1] have
the same TIOT.

[1] I'm not aware of any exceptions.
 
-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     ISO position; see <http://patriot.net/~shmuel/resume/brief.html> 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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