I was confused by the documentation DCB= is the address where the DCB resides so

 Instead of coding MVC WSDCB,TCBJLB
DCB= is a parm on the DESERV 

                    DCB=WSDCB,

I coded L     RX,TCBJLB

               DCB=(RX),

That worked

When the TASK/STEP/JOB  is specified I get X'05' for both BLDL Or DESERV for 
the library is found in When its in the LINKLIST I get a X'01' correctly so 
indicating linklist
For both BLDL/DESERV
       

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of DASDBILL2
Sent: Sunday, December 01, 2013 2:10 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: TCBJLB doesn't point to a DCB

Confusion seems rampant.  Please post the hexadecimal display of the first 48 
(decimal 48, or hex '30') bytes of the TCB in question.  Then post the same 
number of bytes at the beginning of the DCB in question. 

Bill Fairchild 

Franklin, TN 

----- Original Message -----

From: "Shmuel Metz (Seymour J.)" <shmuel+ibm-m...@patriot.net>
To: IBM-MAIN@LISTSERV.UA.EDU
Sent: Friday, November 29, 2013 3:55:40 PM
Subject: Re: TCBJLB doesn't point to a DCB 

In <5737414652770988.wa.woodagozemail.com...@listserv.ua.edu>, on
11/29/2013
   at 11:25 AM, Andy Wood <woo...@ozemail.com.au> said: 

>Why would you expect a TCB to match the DCB DSECT? Clearly, at that 
>point he is talking about TCB+X'28", not DCB+X'28'.

Whoops! 

That would be a 24-bit address, not a 31-bit address, and bits 0-7 should be 
zeroed. Which still leaves the question of whether DESERVE will make a special 
case of the linklist DCB. 
  

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