W dniu 2012-08-23 04:23, McKown, John pisze:
X64 hardware, as much as it has improved, is still not as reliable or
have the I/O capacity of the z hardware. E.g.: We had a TCM fail
once. A spare picked up the work, automatically restarting the
instruction stream, with no outage of any sort and no software
involvement. X86, from what I'm told, would at least require the OS
to do the equivalent of a checkpoint restart. Also had an OSA fail.
The other OSA did an ARP takeover and no IP sessions were lost. TCPIP
was informed, but all it did was put out a message and not start any
new sessions on the failing OSA. Our "open" people called me a liar
when I told them that.
So ?
We know:
- mainframe HW is more reliable and more "redundant" than pc HW.
- even mainframe HW sometimes do fail.
Now we have the followig choices:
- use one OSA card or more and pay for that
- use single BOOK configuration, or pay for more BOOKs
- use single CPC or multiple sysplexedd CPCs
- etc. etc
So, we have some choice: you may want more reliable equipment and pay
more or less reliable one and pay less.
X64 would be another option to pay less for less reliablity. But it's
not due to decision of IBM. And it has very little to do with
technology, it has a lot of to do with business nd politics.
--
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 01.01.2012 r. kapitał zakładowy BRE Banku SA (w całości wpłacony) wynosi 168.410.984 złotych.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
