Bill, Thanks for taking the time to write this response. It is most informative. This goes straight to my useful information folder.
So, if ASM will treat PLPA and Common as a single Common+PLPA extent than I will stand corrected. There is benefit to be gained by having them allocated adjacent to one another. It would be good to know if there is any other logic applied for ASM to do this. For example must the order of the datasets always be PLPA and then Common? Does this operate for a PLPA larger than one Cylinder? I am also wondering if this continues to operate in this way for PAV. With PAV I would think that a page-in from the PLPA dataset would use one of the UCB assigned to PLPA, rendering the need for adjacent datasets redundant. With PAV I would suggest that a dedicated PLPA and Common Dataset (i.e. no overflow) on the same volume would provide almost the same throughput as two dedicated volumes - whether or no they are adjacent. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Bill Fairchild > Sent: Wednesday, 27 July 2005 10:23 PM > To: [email protected] > Subject: Re: ILR005E PLPA PAGE DATA SET FULL > > <SNIP> Lotsa information <SNIP> > > Bill Fairchild > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
