Yes, LPAR Clusters are IRD managed groups of LPARs. Don't forget to read about Weight in relation to 'phantom load' and 'capping pattern', to avoid erratic Lpar performance.
I always like to have a monitor telling what is going on in the system, so I will not be surprised by angry telephone calls and have no clue where to start looking. I use Mainview, I don't know RMF, but it probably also displays the 4HrRA, the current LPAR utilization and the status of softcapping, so you know why the system is doing what it is doing. HTH, Kees. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of R.S. Sent: Tuesday, February 12, 2013 15:36 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Defined capacity "To enable the WorkLoad Manager (WLM), select Enable workload manager. Selecting WLM from one processor details automatically selects WLM from the other processor details and conversely. Specify the minimum and maximum processing weights. Change LPAR management weights based on customer policies and current work loads. " Indeed, to enable WLM I have to check "Enable WLM". I wouldn't know that! Of course there is no explanation what does it mean "enable WLM". WLM is enabled on every z/OS image and cannot be disabled. So, there must be some other explanation of the words above. IRD? No clue about IRD. However I found "WLM checkbox" in the chapter about IRD: "For each logical partition that will participate in LPAR weight management, do the following: - Make sure that "Initial Capping" is turned off. WLM cannot manage the weight of a logical partition that is capped. - Enter the initial processing weight. This becomes the logical partition's weight when it is first IPLed. - Enter the minimum and maximum weights. These set the lower and upper limits for the weights that WLM will assign to the logical partition. - Check the "WLM Managed" box. This is the final step in activating LPAR weight management." ---> THAT'S THE CHECKBOX! BTW: I never used IRD for simple reason: lack of sysplex. So, to my knowledge: WLM checkbox - used only for IRD, leave unchecked otherwise. Defined Capacity - simply put non-zero value, uncheck Initial Capping on CP, zIIP, zAAP. Thank you Kees! -- Radoslaw Skorupka Lodz, Poland P.S. I just found another "helpful" explanation: Image Pforile, Options tab: "CP management cluster name The name specified for the CP management cluster. " I suspect it's also IRD related stuff. W dniu 2013-02-12 14:58, Vernooij, CP - SPLXM pisze: > Radoswaw, > > One to the manuals has a chapter IRD, I think you will find there that the > WLM checkbox triggers IRDs weight management. >>From my experience: forget IRD on modern machines. CPU management is disabled >>by Hiperdispatch and weight management and softcapping do not cooperate. > > Kees. > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of R.S. > Sent: Tuesday, February 12, 2013 14:30 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Defined capacity > > W dniu 2013-02-12 13:50, Vernooij, CP - SPLXM pisze: >> Check this paper too: >> http://www.ibm.com/common/ssi/fcgi-bin/ssialias?infotype=SA&subtype=WH >> &appname=STGE_ZS_ZS_USEN&htmlfid=ZSW03077USEN&attachment=ZSW03077USEN. >> PDF >> >> kees. > > Kees, > Thank you for quick response. Actually I have 3 open documents on my PC, > exactly the same which you mentioned ;-) I found and answer for Q1 (MSU as a > unit), which I was 99% sure. > > Unfortunately I found no explanation about WLM checkbox. From your response I > assume I should leave it unchecked, since I don't use IRD. > > Regarding Q3 - I found that Initial Capping on any processor-type tab gives > the same result - it disables WLM checkbox. So I assume, I shouldn't use > Initial Capping for any CP type, including zIIP. > > > BTW: General observation. It is typical for IBM - Software manuals avoid > describing any details about hardware panels, while H/W manuals do not > describe the meaning of the fields and panels. > > -- > Radoslaw Skorupka > Lodz, Poland > > > > > > > -- > Treść tej wiadomości może zawierać informacje prawnie chronione Banku > przeznaczone wyłącznie do użytku służbowego adresata. Odbiorcą może być > jedynie jej adresat z wyłączeniem dostępu osób trzecich. 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