Thanks Fabio. I have read about the 3 possible scenarios when WLM asks PR/SM to cap the logical partition at the HMC-defined weight value. (page 102-103 of the redbook) I encounter what Kees was talking about (phantom load or “phantom” logical partition & cap pattern that repeatedly applies and removes the cap at the logical partition processing weight..) But my lack of understanding still remains. I must be missing some essential piece.
Jan On Wed, Feb 13, 2013 at 6:40 PM, Fabio Massimo Ottaviani < [email protected]> wrote: > Hi Jan > Redbook - WLM System Programmer Guide - Chapter 3 > Best regards > Fabio > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > + Fabio Massimo Ottaviani > + EPV Technologies Technical Director > + Skype: fabio.massimo.ottaviani > + Mobile: +393406168088 > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > + IT Cost under Control > + www.epvtech.com > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > > Please consider the environment - do you really need to print this > email? > > -----Messaggio originale----- > Da: IBM Mainframe Discussion List [mailto:[email protected]] Per > conto di Jan Vanbrabant > Inviato: mercoledì 13 febbraio 2013 17:13 > A: [email protected] > Oggetto: Re: Defined capacity > > Hi Kees, > > I'm following this thread. (Learning a lot doing this...) > > Whare can I find more about 'phantom load' and 'capping pattern'? > Didn't find these terms in de 2 WLM manuals you mentioned earlier: > > SA22-7602-19 z/OS V1R12.0 MVS Planning Workload Management > SA22-7999-06 z/OS V1R12.0 Planning for Subcapacity Pricing > > (I am at R12, so I looked in the R12 manuals) > > Jan > > On Tue, Feb 12, 2013 at 4:00 PM, Vernooij, CP - SPLXM < > [email protected] > > wrote: > > > 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:[email protected]] > > On Behalf Of R.S. > > Sent: Tuesday, February 12, 2013 15:36 > > To: [email protected] > > 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:[email protected]] > > On Behalf Of R.S. > > > Sent: Tuesday, February 12, 2013 14:30 > > > To: [email protected] > > > 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. Jeżeli > > nie jesteś adresatem niniejszej wiadomości lub pracownikiem > > upoważnionym do jej przekazania adresatowi, informujemy, że jej > > rozpowszechnianie, kopiowanie, rozprowadzanie lub inne działanie o > > podobnym charakterze jest prawnie zabronione i może być karalne. > > Jeżeli otrzymałeś tę wiadomość omyłkowo, prosimy niezwłocznie > > zawiadomić nadawcę wysyłając odpowiedź oraz trwale usunąć tę wiadomość > > włączając w to wszelkie jej kopie wydrukowane lub zapisane na dysku. > > > > > > This e-mail may contain legally privileged information of the Bank > > > and > > is intended solely for business use of the addressee. This e-mail may > > only be received by the addressee and may not be disclosed to any third > parties. > > If you are not the intended addressee of this e-mail or the employee > > authorised to forward it to the addressee, be advised that any > > dissemination, copying, distribution or any other similar activity is > > legally prohibited and may be punishable. If you received this e-mail > > by mistake please advise the sender immediately by using the reply > > facility in your e-mail software and delete permanently this e-mail > > including any copies of it either printed or saved to hard drive. > > > > > > BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 > > > 00 00, > > fax +48 (22) 829 00 33, www.brebank.pl, e-mail: [email protected] > > > Sąd Rejonowy dla m. st. Warszawy XII Wydział Gospodarczy Krajowego > > Rejestru Sądowego, nr rejestru przedsiębiorców KRS 0000025237, NIP: > > 526-021-50-88. > > > Według stanu na dzień 01.01.2013 r. kapitał zakładowy BRE Banku SA > > > (w > > całości wpłacony) wynosi 168.555.904 złotych. > > > > > > > > > -------------------------------------------------------------------- > > > -- For IBM-MAIN subscribe / signoff / archive access instructions, > > > send email to [email protected] with the message: INFO > > > IBM-MAIN > > > ******************************************************** > > > For information, services and offers, please visit our web site: > > http://www.klm.com. This e-mail and any attachment may contain > > confidential and privileged material intended for the addressee only. > > If you are not the addressee, you are notified that no part of the > > e-mail or any attachment may be disclosed, copied or distributed, and > > that any other action related to this e-mail or attachment is strictly > > prohibited, and may be unlawful. If you have received this e-mail by > > error, please notify the sender immediately by return e-mail, and delete > this message. > > > > > > Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries > > > and/or > > its employees shall not be liable for the incorrect or incomplete > > transmission of this e-mail or any attachments, nor responsible for > > any delay in receipt. > > > Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal > > > Dutch > > Airlines) is registered in Amstelveen, The Netherlands, with > > registered number 33014286 > > > ******************************************************** > > > > > > > > > -------------------------------------------------------------------- > > > -- For IBM-MAIN subscribe / signoff / archive access instructions, > > > send email to [email protected] with the message: INFO > > > IBM-MAIN . > > > > > > > > > > > > > -- > > 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. Jeżeli > > nie jesteś adresatem niniejszej wiadomości lub pracownikiem > > upoważnionym do jej przekazania adresatowi, informujemy, że jej > > rozpowszechnianie, kopiowanie, rozprowadzanie lub inne działanie o > > podobnym charakterze jest prawnie zabronione i może być karalne. > > Jeżeli otrzymałeś tę wiadomość omyłkowo, prosimy niezwłocznie > > zawiadomić nadawcę wysyłając odpowiedź oraz trwale usunąć tę wiadomość > > włączając w to wszelkie jej kopie wydrukowane lub zapisane na dysku. > > > > This e-mail may contain legally privileged information of the Bank and > > is intended solely for business use of the addressee. This e-mail may > > only be received by the addressee and may not be disclosed to any > > third parties. If you are not the intended addressee of this e-mail or > > the employee authorised to forward it to the addressee, be advised > > that any dissemination, copying, distribution or any other similar > > activity is legally prohibited and may be punishable. If you received > > this e-mail by mistake please advise the sender immediately by using > > the reply facility in your e-mail software and delete permanently this > > e-mail including any copies of it either printed or saved to hard drive. > > > > BRE Bank SA, 00-950 Warszawa, ul. Senatorska 18, tel. +48 (22) 829 00 > > 00, fax +48 (22) 829 00 33, www.brebank.pl, e-mail: [email protected] > > Sąd Rejonowy dla m. st. Warszawy XII Wydział Gospodarczy Krajowego > > Rejestru Sądowego, nr rejestru przedsiębiorców KRS 0000025237, NIP: > > 526-021-50-88. > > Według stanu na dzień 01.01.2013 r. kapitał zakładowy BRE Banku SA (w > > całości wpłacony) wynosi 168.555.904 złotych. > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to [email protected] with the message: INFO IBM-MAIN > > ******************************************************** > > For information, services and offers, please visit our web site: > > http://www.klm.com. This e-mail and any attachment may contain > > confidential and privileged material intended for the addressee only. > > If you are not the addressee, you are notified that no part of the > > e-mail or any attachment may be disclosed, copied or distributed, and > > that any other action related to this e-mail or attachment is strictly > > prohibited, and may be unlawful. If you have received this e-mail by > > error, please notify the sender immediately by return e-mail, and delete > this message. > > > > Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or > > its employees shall not be liable for the incorrect or incomplete > > transmission of this e-mail or any attachments, nor responsible for any > delay in receipt. > > Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal > > Dutch > > Airlines) is registered in Amstelveen, The Netherlands, with > > registered number 33014286 > > ******************************************************** > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email > to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
