That's good to know. You may not want to give up those 3390A addresses so quickly. While the standard 32 ALIAS that most people are deploying for HyperPAV is plenty in most cases, I just been working with one account where 32 is plainly not enough and they are getting some significant IOS Q time - averages of 400ms and max of 800ms.
In general a small number of Alias will work well with small service times, but if you have volumes with many concurrent IO and large service times it is pretty easy to eat up those aliases very quickly. In this case it is the 32K DSNDB07 tables, but it could easily be any other volume with many large chained IO, or a occasional sibling pend problems. So hold on to those Aliases until you're sure you don't need them. Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of > gsg > Sent: Friday, September 04, 2009 11:32 AM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] EMC DASD and Hyper-PAVs > > We are currently using Dynmaic PAVs. We may actuall have to scale them > back. I think that we will just leave them as is since we are not close to > approaching the maximum address limit. > > Thanks > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
