On Fri, 1 Jun 2007 14:19:42 +0200, Frank Allan Rasmussen
<[EMAIL PROTECTED]> wrote:

<snip>
>
>But need to use the image created by sys1.samplib(cunsism6). And it is
huge, about 900 tracks, and there are not room for it in any parmlib dataset.
>
> 
>
>Is the possible to create a large '.new' and the rename a current to '.old'
and the '.new' to current name?
>

The PARMLIB data set should not be ENQed (unless it is referenced is 
some STC etc.), so YES - you can do this. However, it must be on 
the same volume since it is allocated to MSTJCLxx. 

If you want to go through the trouble of moving it, you can still
do so by using the SETLOAD operator command to remove it and
re-add it.

>
>Or do we have to IPL.

No - see above.

>
>And why is the image placed in parmlib?????
>

Because IBM designed it that way.   For such a big member, you
might want to create its own large parmlib anyway.  See the
SETLOAD command as I indicated above to add it dynamically and
use it going forward.

>
>We are at z/OS 1.6.
>

Other options:

At z/OS 1.6 (and z/OS 1.2 - 1.5 with the PTF for OA04069) a KEY 7 TCB 
mode caller (like DB2) can utilize a pre-built image that should have
what you need.  However, it does take and IPL to load it and SYS1.SCUNIMG 
has to be in the LNKLST (be sure to remove UNI= from IEASYSxx). 
Then you don't need to keep it in PARMLIB.

Once you get to z/OS 1.7 + APAR OA14231 or z/OS 1.8 (or
higher), then you can use the new feature that lets the system
load the conversion routines as needed.  You also need SYS1.SCUNIMG in
the LNKLST and SYS1.SCUNTBL cataloged.   There have been some
recent threads on this. I think Brian referred to this as "Unicode on
Demand" (although I don't know if he was the first to say that).

Search the archives and see the fine manuals for more. 

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America / Farmers Insurance Group:  G-ITO
mailto:[EMAIL PROTECTED]
z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/
Systems Programming expert at http://expertanswercenter.techtarget.com/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html

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