John Deere's data center in the 70s had multiple AC providers but still had 
Midwest lightning
induced outages, but the data center manager was unsuccessful in installing a 
diesel backup
system because the only UPS system that met their power needs was available 
ONLY with a 
Caterpillar Diesel engine, and the board would not approve.

After the third or fourth outage, the data center manager was finally allowed 
to build 
a GREEN windowless building to house the diesel and generator, and they snuck 
the yellow 
Cat engine into its home in the middle of the night.

Barry Merrill


Merrilly yours,

 Herbert W. Barry Merrill, PhD
 President-Programmer
 Merrill Consultants
 MXG Software
 10717 Cromwell Drive              technical questions: [email protected]
 Dallas, TX 75229
 http://www.mxg.com                admin questions:     [email protected]
 tel: 214 351 1966
 fax: 214 350 3694



-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Jesse 1 Robinson
Sent: Wednesday, March 1, 2017 11:25 AM
To: [email protected]
Subject: Re: Check out Massive Amazon cloud service outage disrupts sites

I heard about a major electric utility that had an influential VP who believed 
that it was 'unseemly' for the company to spend money on backup power. Sort 
dissing their own product. He blocked all efforts to install diesel generators. 
Thankfully he is long gone. A major multi-state event in the mid-2000s induced 
the company to finally invest in serious power backup and DR. 

I love the old saw about the cobbler's children going without shoes.  

.
.
J.O.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler 
SHARE MVS Program Co-Manager
323-715-0595 Mobile
626-543-6132 Office ⇐=== NEW
[email protected]


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Charles Mills
Sent: Wednesday, March 01, 2017 9:03 AM
To: [email protected]
Subject: (External):Re: Check out Massive Amazon cloud service outage disrupts 
sites

And you're in the electric power BUSINESS!

Up here in northern CA we used to joke that PG&E's company song should be the 
Simon & Garfunkel "Hello Darkness my Old Friend."

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Jesse 1 Robinson
Sent: Wednesday, March 1, 2017 8:27 AM
To: [email protected]
Subject: Re: Check out Massive Amazon cloud service outage disrupts sites

Our data center folks insist on dual power feeds for everything, sometimes 
infuriatingly so. To test power redundancy, they occasionally drop one power 
feed or the other--with ample heads up--and check that all devices are 
functioning. Other than call-home events, we have not had any surprises so far. 

Testing for a full power outage (both sides) is a lot harder, but it has been 
done here a few times.  


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