If the first system IPLed is not the last system brought down, you may have to 
reply I to initialize the sysplex. This is because the last system leaves no 
compatriot behind to do final cleanup of the couple data set(s). In the 
last-down/first-up sequence, the system recognizes his own body odor and 
marches on without prompting.

.
.
.
J.O.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler 
SHARE MVS Program Co-Manager
626-302-7535 Office
323-715-0595 Mobile
[email protected]

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Staller, Allan
Sent: Thursday, December 04, 2014 9:06 AM
To: [email protected]
Subject: Re: LPAR IPL order within a Sysplex

Conceptually, all members of a sysplex are considered to be capable of any 
operation within the sysplex (yes I know this may not be true, but this is an 
installation choice, not a design point).
Most commands that  have a SYSPLEX scope can be applied to all LPARS 
"simultaneously' with the RO *ALL, cmd.

To continue the conceptual design point, most services (GRS, WLM,....) are 
operating from the same set of data (either by a couple dataset or CF policy), 
thus  within a SYSPLEX, LPAR IPL order should make no difference.

The first system to establish the sysplex set the policies, and subsequent 
members use those policies until modified.

HTH,

<snip>
What things are built in a Sysplex by the first LPAR brought up in the Sysplex 
that would impact subsequent LPARs brought up in the Sysplex?

Some possible examples... WLM, GRS, SMS etc.

I am asking this question to elevate the need to maintain/preserve LPAR IPL 
order in a Sysplex and identify how a change in order could cause trouble.

Note: All Sysplex LPARs running z/OS 1.13 </snip>

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