I was in a shop in the early 1980s where we had a very bad experience of the power being cut by the use of the emergency switch. There was a building maintenance man in the machine room. When he went to leave instead of pressing the button to activate the door to the mantrap, he pressed the emergency power down switch. They were very close together. It took us the better part of a day to get everything back up. The processor was no problem, but a few disk drives were troublesome. That incident resulted in them moving the emergency power down switch away from the door switch, and a cover was put over the emergency power down switch.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Matan Cohen Sent: Thursday, June 17, 2010 7:45 AM To: [email protected] Subject: Re: taking down the machine - z9 series R.S wrote "We shutdown SE" SE stand for? I did this sort of shutdown at diffrent Data center the time elctricity power cut is schedule from advance. in the past I remeber i was told never to cut power using the emergency switch ( i don't know the reason for that but it was said by a wise man). tom- i do want to perform a control power cut. i asked on the best way to perform this for the Z machine On Thu, Jun 17, 2010 at 3:28 PM, R.S. <[email protected]>wrote: > Matan Cohen pisze: > > Hi, >> When the situation force you to taking down the machine (due to >> Electricity >> power cut) , after taking down the lpars. >> do you perform anything else beside deactivation of the CPC ? >> i met a diffrent opinion in this matter . >> > > Yes, we do. We shutdown SE and then cut the power using emergency switch. > Electricity works could mean several up-down sequences which are not good > for any machine. > > -- > Radoslaw Skorupka > Lodz, Poland > > > -- > BRE Bank SA > ul. Senatorska 18 > 00-950 Warszawa > www.brebank.pl > > S d Rejonowy dla m. st. Warszawy XII Wydzia Gospodarczy Krajowego Rejestru > S dowego, nr rejestru przedsi biorców KRS 0000025237 > NIP: 526-021-50-88 > Wed ug stanu na dzie 01.01.2009 r. kapita zak adowy BRE Banku SA (w ca o > ci wp acony) wynosi 118.763.528 z otych. W zwi zku z realizacj warunkowego > podwy szenia kapita u zak adowego, na podstawie uchwa y XXI WZ z dnia 16 > marca 2008r., oraz uchwa y XVI NWZ z dnia 27 pa dziernika 2008r., mo e ulec > podwy szeniu do kwoty 123.763.528 z . Akcje w podwy szonym kapitale zak > adowym BRE Banku SA b d w ca o ci op acone. > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- best regards, matan cohen MF System Administrator. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ***************************************************************************** If you wish to communicate securely with Commerce Bank and its affiliates, you must log into your account under Online Services at http://www.commercebank.com or use the Commerce Bank Secure Email Message Center at https://securemail.commercebank.com NOTICE: This electronic mail message and any attached files are confidential. The information is exclusively for the use of the individual or entity intended as the recipient. If you are not the intended recipient, any use, copying, printing, reviewing, retention, disclosure, distribution or forwarding of the message or any attached file is not authorized and is strictly prohibited. If you have received this electronic mail message in error, please advise the sender by reply electronic mail immediately and permanently delete the original transmission, any attachments and any copies of this message from your computer system. ***************************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
