Re: How long does a PWRDWNSYS restart(*no) actually take?

["Mark Murphy/STAR BASE Consulting Inc." <mmurphy@xxxxxxxxxxxxxxx>]

I remember when they first tested the generator on the old data center. There was some sort of short in the Generator distribution panel, and when it went live, took the entire data center down. That was production!

Mark Murphy
Atlas Data Systems
mmurphy@xxxxxxxxxxxxxxx


-----Charles Wilt <charles.wilt@xxxxxxxxx> wrote: ----- 
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
From: Charles Wilt <charles.wilt@xxxxxxxxx>
Date: 07/31/2017 04:42PM
Subject: Re: How long does a PWRDWNSYS restart(*no) actually take?


Place I used to work built a new data center...

dual generators
dual UPS's

And these UPS's were rooms sized, battery stack about 20ft long 10ft wide,
10ft tall...

Problem was both battery stacks were in the same room 50ft x 15ft room...

A fire on one stack took down both...oopps!

Luckily, we hadn't actually started moving production machines into it.

But I don't believe they could have or did redesign it at that point.
Unless maybe they added an actual firewall between the stacks.


Charles


On Mon, Jul 31, 2017 at 2:29 PM, Rob Berendt <rob@xxxxxxxxx> wrote:

> We did have an employee who flipped the wrong thing on the UPS and killed
> the machine room.  Like, which end of the knob was the pointy end and
> which was just a handle kind of thing.  He quickly left to do something at
> one of our other cities.
>
>
> Rob Berendt
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> From:   Justin Taylor <JUSTIN@xxxxxxxxxxxxx>
> To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
> Date:   07/31/2017 04:27 PM
> Subject:        RE: How long does a PWRDWNSYS restart(*no) actually take?
> Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
>
>
>
> On first glance, that sounds like a good idea (although not straight into
> dirty power).
>
> If a power supply fails, you're still good.
> If utility power fails, you're still good.
> If UPS fails, you're still good.**
>
> ** If both power supplies go into the UPS, you're sunk here.
>
>
>
> -----Original Message-----
> From: DrFranken [mailto:midrange@xxxxxxxxxxxx]
> Sent: Monday, July 31, 2017 2:37 PM
> To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>;
> Gerald Magnuson <gmagqcy.midrange@xxxxxxxxx>
> Subject: Re: How long does a PWRDWNSYS restart(*no) actually take?
>
>  > We do have redundant power supplies, and I have them honed to 1)  >
> straight Utility power... 2) UPS (after the utility power /  > Generator
> switch)....
>
> Curious to the logic of plugging one into the wall and one into the UPS?
>
>          - Larry "DrFranken" Bolhuis
>
> www.Frankeni.com
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