Jason

Note that I am treating this question purely on its merits since I don't have 
any special insights regarding SYS1.BRODCAST. What I'm mentioning now is how 
I'd start to go about solving the problem if I still had my "sandbox" systems 
with which to play.

First check the message text:

<quote>

IKJ139I BROADCAST DATA SET NOT USABLE, I/O SYNAD ERROR

Explanation: An operator SEND command was issued which required accessing the 
broadcast data set. However, in accessing the data set a read/write failure was 
encountered.

System Action: Processing is ended; messages may or may not have been saved in 
the broadcast data set. Broadcast data set-independent processing has been 
completed.

Operator Response: Report this message to the system programmer.

System Programmer Response: Determine and remove the cause of the I/O error.

</quote>

Right! Not so very helpful - in this case.

Since this clearly concerns SYS1.BRODCAST, try the following:

"z/OS Internet Library"

http://www-03.ibm.com/systems/z/os/zos/bkserv/

Assuming V1R13, select V1.13 under "Publication titles, filenames, and order 
numbers by z/OS release".

Enter SYS1.BRODCAST in the "Search text" box under "z/OS V1R13.0 Base Elements 
Optional Features  - 448 books" and select.

>From here you have a list of 26 manuals, but "nous" suggests that "TSO/E 
>Customization" could be promising.

Then the topic "1.1.2.2 UADS and broadcast data set maintenance" looks like a 
good starting point:

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ikj4b4c0/1.1.2.2

I went a bit further in order to try to be sure I wasn't leading you down the 
garden path.

And I don't believe I am: In "4.2 Chapter 24. Working with the UADS and 
broadcast data set", I see the following first paragraph:

<quote>

If you are installing TSO/E on your system for the first time, you must create 
both the UADS and the broadcast data sets. If you are installing a new release 
of TSO/E, you may have to reformat both data sets. During subsequent operation, 
you may have to update both data sets by adding, changing, or deleting entries. 
In addition, you may reformat the data sets to eliminate wasted space caused by 
periodic additions, changes, and deletions. 

</quote>

I'm going to guess that, to use a peculiar verb to which the IBM-LIST 
subscribers are much attached, what follows in this section may also be 
relevant when your existing SYS1.BRODCAST data set is "hosed".

Chris Mason

On Mon, 21 Nov 2011 13:56:46 +0800, ibmnew <ibm...@163.com> wrote:

>Hi all
>
> In the syslog,there is the following message:
>
>IKJ139I   BROADCAST DATA SET NOT USABLE, I/O SYNAD ERROR
>
> My question :
>
> 1. Do it mean sys1.broadcast is broken?
>
> 2. How to verify sys1.broadcast DATSET?
>
> 3. How to solve this problem?
>
>
>Thanks a lot!
>
>Jason Cai

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