That sounds like your HSA size was based on the actual defined devices, not the maximum that can be defined.
This makes me question the utility of the MAXDEVS parameter. Why would I bother limiting the number of devices if it has no effect on the HSA size ? Brian Nielsen On Wed, 16 Aug 2006 17:10:22 -0500, Tom Duerbusch <[EMAIL PROTECTED]> wrote: >I kept the LPARs but I really cut down on the OSA adapters. > >We have 4 OSA cards. > >2 that supports the ICC devices >2 that supports are normal network traffic > >When I defined all the addresses and then gave all addresses to all 4 lpars. > >Now, all the addresses on the DS6800 are on all LPARs, but I also cut back to what we would realistically use, not the max that we could define for the DS6800. > >Tom Duerbusch >THD Consulting > >>>> [EMAIL PROTECTED] 8/16/2006 4:14 PM >>> >Did you cut back your HSA by removing LPARs, reducing MAXDEVS, or both? >Mostly I want to verify that MAXDEVS impacts HSA size. > >Brian Nielsen > >On Wed, 16 Aug 2006 15:33:43 -0500, Tom Duerbusch ><[EMAIL PROTECTED]> wrote: > >>I do believe that it is the max devices defined, but that is also acros s >>LPARs. >> >>What initially bit me, was I defined 4 lpars. Why? I don't know. I >>needed two, a 390 and an IFL. But I thought about a test one and >>perhaps a "systems" one. And the convention was to define the devices >>to all LPARs. Well, almost 2 GB for HSA convinced me otherwise. Even >>if I didn't bring up the LPAR, the definitions took their pound of HSA, >>hence real storage. >> >>I cut things back to the minimum of 768M HSA size. >> >>I remember when OS/VS 2 took 768K for the superviser. Is the HSA >>process 1,000 times more complex then OS/VS 2? >> >>Tom Duerbusch >>THD Consulting >> >>>>> [EMAIL PROTECTED] 8/16/2006 2:32 PM >>> >>On a z/890, does the size of the HSA change if the value of the MAXDEVS >> >>parameter on the RESOURCE statement in the IOCP is increased/decreased? >> >>The z/890 System Oveview manuals says the HSA size varies according to >> >>the "size and complexity of the I/O configuration", but it's not clear >>if >>it refers to the actual defined devices or the maximum devices that can >>be >>defined. It makes the most sense for it to be the maximum devices, but >> >>I'd like to verify it. >> >>Brian Nielsen >>======================== ========================= ======================== >======================== ========================= =======================
