Sure. Some time ago we did a check of the power connections before a major action on one of the power rails and we also found a couple of devices that had their redundant power plugs connected to the same rail.
Kees. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Jousma, David > Sent: 15 October, 2019 14:30 > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Power failure > > My point about the UPS's is that while I am sure you know they are fine, > do you KNOW for sure your z14 is wired to both? Only your facilities > guys can answer that. We've been known to see a few servers go down when > our facilities guys take a PDU offline to do some maintenance, only to > find that some servers had both of their power feeds coming off the > same... > > __________________________________________________________________________ > ___________________________ > Dave Jousma > AVP | Manager, Systems Engineering > > Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand > Rapids, MI 49546 > 616.653.8429 | fax: 616.653.2717 > > > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf > Of Peter > Sent: Tuesday, October 15, 2019 8:24 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: Power failure > > **CAUTION EXTERNAL EMAIL** > > **DO NOT open attachments or click on links from unknown senders or > unexpected emails** > > We have checked our local UPS and they are fine .. > > Not sure why SE didn't write anything about this failure and there was no > IBM call made from box. > > There should be somewhere this kind of failure notification would be > recorded ? > > On Tue, 15 Oct, 2019, 3:51 PM Jousma, David, < 000001a0403c5dc1-dmarc- > requ...@listserv.ua.edu> wrote: > > > Assuming you have the box properly installed, and reporting "home" to > > IBM, I'd suspect something local. These boxes have redundant power > > supplies, and if one fails, it will phone home. Maybe what you think > > is true about your redundant connections is not really the case? > > > > > > > > > > ______________________________________________________________________ > > _______________________________ > > Dave Jousma > > AVP | Manager, Systems Engineering > > > > Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand > > Rapids, MI 49546 > > 616.653.8429 | fax: 616.653.2717 > > > > > > -----Original Message----- > > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On > > Behalf Of Peter > > Sent: Tuesday, October 15, 2019 7:47 AM > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: Power failure > > > > **CAUTION EXTERNAL EMAIL** > > > > **DO NOT open attachments or click on links from unknown senders or > > unexpected emails** > > > > Hi > > > > We had a power failure on our z14 zr1. I couldn't find any reason on > > the log or hardware message on why it had power failure. Also our z14 > > box is connected to two different UPS and they never went down . > > > > Where can we find the root cause of this power outage? When i checked > > our Support element was initialising and not sure what made this power > outage. > > As other machines were all working intact. > > > > Any clue or suggestions to look into this? > > > > Peter > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > **CAUTION EXTERNAL EMAIL** > > > > **DO NOT open attachments or click on links from unknown senders or > > unexpected emails** > > > > This e-mail transmission contains information that is confidential and > may > > be privileged. 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