Hello Skip ,

  Thanks for sharing your thoughts on this . Appreciate your time and
effort to help me out .

The reason for implementing difference is that we have had weird issues on
few of the pre-prod systems which are unfortunately a part of the
production plex .

We wanted to have these systems isolated immediately when there is a
problem using SSD or SFM . For now , we have specified lower weights for
these systems .

We are also looking at a plan to take these LPARS to another sysplex so the
production systems are not impacted . Since we did not want to touch
anything on existing production couplexx members , thought of asking it
here before proceeding .


Regards,
Baby






On Mon, Nov 28, 2016 at 12:04 AM, Jesse 1 Robinson <[email protected]>
wrote:

> I had to dig into the doc to investigate some of the parameters you're
> asking about. Some thoughts:
>
> -- You do NOT want to use multiple COUPLExx members across the sysplex.
> Some of the parameters must be consistent across the plex. If you introduce
> multiple COUPLExx members, it's only a matter of time until a change is
> made for one system that is not carried over to other systems. I don't know
> what effect that might have, but you don't want Level 2 to have to figure
> out what went wrong. CLEANUP(nn) for example is specified in COUPLExx.
> Different values would mean different COUPLExx members. A risk.
>
> -- Even parameters that CAN be different across the sysplex should not be
> changed just because it's possible. Do you have a strong reason for wanting
> different values for INTERVAL or OPNOTIFY? However you set them, I don't
> see in the doc any compelling argument for implementing differences. You
> can use weighting values in the SFM policy to give priority to beloved cows
> at the expense of chickens and goats. You still have a single policy across
> the sysplex.
>
> .
> .
> J.O.Skip Robinson
> Southern California Edison Company
> Electric Dragon Team Paddler
> SHARE MVS Program Co-Manager
> 323-715-0595 Mobile
> 626-302-7535 Office
> [email protected]
>
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] On
> Behalf Of baby eklavya
> Sent: Saturday, November 26, 2016 12:21 AM
> To: [email protected]
> Subject: (External):Couplexx values for sysplex - Query
>
> Hello Listers,
>
> We are doing a change to set values for INTERVAL ,CLEANUP and OPNOTIFY in
> COUPLExx different for few systems in our sysplex . I understand that
> INTERVAL can be set different for each system in the plex after you enable
> USER INTERVAL on the Functions statement .
>
> I would be interested to know if you have any thoughts against setting up
> different values for CLEANUP on systems within a sysplex .
>
> Btw , we are on z/os 2.1 and are planning to implement SSD on all systems
> within the plex .
>
>
> Regards,
> Baby
>
>
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