Eric, I don't recall if the feature was standard in Resource Manager that long ago, but it certainly has been standard for the last two generations of our storage, If the feature was the Resource Manager Software, then you are missing a bit more than just CVS volumes.
In fact I have a 9910 and a 9960 at customer sites in Singapore and Malaysia where I use the CVS feature to carve up some of the 3390-3 volumes into 3390-1 and 3390-2 volumes. They needed this because this was how they billed their customers. As far as I recall they only have the Resource Manager software. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On > Behalf Of Eric Bielefeld > Sent: Tuesday, 26 July 2005 9:11 AM > To: [email protected] > Subject: Re: ILR005E PLPA PAGE DATA SET FULL > > Ron, > > I wonder if most shops really have volumes they can split into any size > they want. We have a Hitachi 9910 (I think). We could have paid an > extra $25K and gotten a feature that allows us to allocate any size DASD > we wanted, but 4 years ago when we leased our box, my boss didn't want > to pay the extra money. The same with the flash copy like product. We > had several applications that could have used that. > > Eric Bielefeld > P&H Mining Equipment > > Ron and Jenny Hawkins wrote: > > Ted, et al, > > > > As far as I recall this was not a performance recommendation, it was a > > compromise. The intent was to save you from dedicating two volumes to > the > > PLPA and Common, by coming up with a least impact way of putting them on > the > > same pack. Note that there is a specific requirement to hand place the > > datasets on the volume in a way that reduced seek, and PLPA was small > enough > > that the seldom ending channel programs to Common were not interrupted > by > > PLPA page-in. > > > > In terms of performance finesse a separate volume for PLPA and Common is > > better than a single volume. Now that all the latest and greatest > storage > > can have Custom Volume Sizes there is no longer a need waste large > amounts > > of space because PLPA and Common have dedicated volumes. Just slice out > two > > volumes at the required size and use one for PLPA and one for Common, > > without the overflow method. > > > > The recommendation is still the best way to configure this compromise, > but > > it remains a compromise. Your disk technology makes the single pack > > PLPA/Common unnecessary nearly 10 years ago, so why continue to do it. > > > > Ron > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
