when I mention this weeks ago they all thought I was out of my mind all the big Z/os shops were like ESCON who needs ESCON any more well we do, and yes I know all about FICON to ESCON converters what a poor excuse for poor planning
From: "R.S." <[email protected]> To: [email protected], Date: 09/05/2012 04:18 PM Subject: Re: Another stupid idea spawned by the zEC12. Sent by: IBM Mainframe Discussion List <[email protected]> Well, maybe it's being developed? Maybe we should simply wait for next generation? I'm serious. BTW: there is something which I really consider stupid: ESCON. EC12 still supports old format of I/O cards. Both I/O Drawer and I/O Cage are supported (with some *non-technical* limitations), one can use old type of OSA, Crypto, FICON - in every case there are new shape replacements. It also supports ISC-3, which is a little bit ridiculous because every CPC generation which is supported by sysplex (can work in sysplex with EC12) is able to use much more efficient Infiniband. From the other hand, ESCON has no replacement, except quite expensive Prizm. Why? No development was needed here. -- Radoslaw Skorupka Lodz, Poland W dniu 2012-09-05 19:45, McKown, John pisze: > OK, I'm reading the Redbooks on this. And I'm wondering something due > to my hardware ignorance. I've noticed that doing a P.O.R. is rather > time consuming, especially on my company's z9BC. I don't know what a > P.O.R. actually does internally. One thing that I am fairly sure of > is that it loads the IOCDS and perhaps the "millicode" from the SE. > It needs to do this because HSA is essentially just a part of main > memory. It has always seemed to me that the SE's are rather slow. But > I don't know how long this loading takes. The zEC12, optionally, has > SSD type memory available to it. If available, why not keep the HSA > in it? Is the HSA written to any time other than P.O.R. or when the > IOCDS is reloaded due to a dynamic IOCDS update? Would doing so have > any effect on the P.O.R. time? Or am I once again trying to optimize > something that is irrelevant? > > I ask these things due to my curiosity and ignorance. The last time, > about IPL'ing from SSD memory, gained me good information about how > fast IPL/NIP actually was compared to the rest of z/OS > initialization. Too bad there is not some way to have an more > completely "initialized" z/OS in the Flash Express (like CMS is kept > in an NSS in z/VM) and be able to IPL from it. Yes, I know. We IPL > way too often. Not my call. > -- Tre tej wiadomoci moe zawiera informacje prawnie chronione Banku przeznaczone wycznie do uytku subowego adresata. Odbiorc moe by jedynie jej adresat z wyczeniem dostpu osób trzecich. Jeeli nie jeste adresatem niniejszej wiadomoci lub pracownikiem upowanionym do jej przekazania adresatowi, informujemy, e jej rozpowszechnianie, kopiowanie, rozprowadzanie lub inne dziaanie o podobnym charakterze jest prawnie zabronione i moe by karalne. Jeeli otrzymae t wiadomo omykowo, prosimy niezwocznie zawiadomi nadawc wysyajc odpowied oraz trwale usun t wiadomo w czajc 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] Sd Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru S dowego, nr rejestru przedsibiorców KRS 0000025237, NIP: 526-021-50-88. Wedug stanu na dzie 01.01.2012 r. kapita zakadowy BRE Banku SA (w caoci wp acony) wynosi 168.410.984 zotych. ---------------------------------------------------------------------- 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
