OK, I'll try and make it clear. PR/SM Planning Guide spells out that at partition activation the initial storage allocation is made in contiguous segments.
If you follow the sequence of the scenario I presented, you'll see that I am in fact asking whether lpar A, when activated, would be able to have two discontiguous storage segments - the storage released by lpar C past the end of its new allocation and its original segment. It cannot, if I understand what is written in the PR/SM Planning Guide. Thomas Ambros Operating Systems and Connectivity Engineering 518-436-6433 From: "Pommier, Rex R." <[email protected]> To: [email protected] Date: 07/11/2013 15:47 Subject: Re: Central Storage reallocation on z9 - requirement to be contiguous? - Never mind, didn't read enough... or reply with enough information, Sent by: IBM Mainframe Discussion List <[email protected]> OK, now I'm confused. Which question are you answering 'yes' to? You asked 2 opposite questions. In the subject line, you asked if the storage needs to be contiguous. In the body of the e-mail you ask if you could remove storage from C and give it to A without messing with B in the middle. At partition activation the storage is assigned contiguously. That makes sense as it is the easiest algorithm. But it doesn't answer the question of whether it needs to be contiguous on a reconfiguration. I'm guessing it has to be contiguous, but at this point that's all it is, a guess. Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Tom Ambros Sent: Thursday, July 11, 2013 9:20 AM To: [email protected] Subject: Re: Central Storage reallocation on z9 - requirement to be contiguous? - Never mind, didn't read enough... or reply with enough information, Sorry, the answer is YES if one has not defined reserved storage. At partition activation the storage is assigned in contiguous segments. Thomas Ambros Operating Systems and Connectivity Engineering 518-436-6433 From: "Vernooij, CP - SPLXM" <[email protected]> To: [email protected] Date: 07/11/2013 10:18 Subject: Re: Central Storage reallocation on z9 - requirement to be contiguous? - Never mind, didn't read enough. Sent by: IBM Mainframe Discussion List <[email protected]> To take away the confusion you might have caused with some of us (and prevent us from having to rtfm in order to sleep well tonight): the answer is NO? Kees. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Tom Ambros Sent: Thursday, July 11, 2013 16:13 To: [email protected] Subject: Re: Central Storage reallocation on z9 - requirement to be contiguous? - Never mind, didn't read enough. PR/SM Planning Guide spells it out. Thomas Ambros Operating Systems and Connectivity Engineering 518-436-6433 From: Tom Ambros <[email protected]> To: [email protected] Date: 07/11/2013 09:20 Subject: Central Storage reallocation on z9 - requirement to be contiguous? Sent by: IBM Mainframe Discussion List <[email protected]> z9 with three partitions, activated in order A, B, C. No reserved storage defined. We need to remove some storage from C and assign it to A. Without any operations on B, can we deactivate C, reduce initial storage, reactivate it and then deactivate A later that night, increase initial storage and reactivate it successfully? I do not see any mention of a requirement for contiguous storage in the z9 Tech Guide, it says only that the storage can come from any unused storage or storage released from another partition. Thanks... Thomas Ambros Operating Systems and Connectivity Engineering 518-436-6433 This communication may contain privileged and/or confidential information. 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