[rescue] SunFire V490 FTGH - Minneapolis/St. Paul

Doug McIntyre merlyn at geeks.org
Wed Oct 28 10:28:31 CDT 2020

In the Sun/cisco realm of things, more things were just 208V/240V only
at random and out of the blue like the way this was found. Or like
certain cisco switches all came 120V power supplies, until one number off
found us having to support 208V only power supplies for the same switch model.

While now-a-days, we'd wire up cabinets in our datacenters at 208V,
for the first couple decades, we'd do 120V feeds almost exclusively,
as we didn't have the really big boxes coming in, so when encountering
the 208V required equipment, it was always a shuffle to get the
electricians going.  This was at a time too when IEC13/19 power strips
weren't ubiquitous, so it was a bit more interesting and one-off to get the
208V required boxes to get powered in our field of 120V powered cabinets...

Power distribution is still interesting, like the last odd requirement
for a Dell Blade server that required 18kW of 208V power only on IEC21
plugs. Uhhh.. 

On Wed, Oct 28, 2020 at 08:35:59AM -0600, Bob Darlington wrote:
> The chart is clear they run on a range of voltages, all single phase.  The
> electricians should've changed the plug.  My data centers typically feed
> racks with 208 single phase.  Most equipment we use (like a Dell monitor as
> an example) will plug into the wall at 120v, or 240v, or anything in
> between.  Every residence in the usa has 240v single phase pulled to it
> with few exceptions.
> -Bob
> On Wed, Oct 28, 2020, 7:31 AM Will Enestvedt <wenestvedt at gmail.com> wrote:
> > > Dave McGuire wrote: "V490 requires 220V??  Weird.  I've had a number of
> > V480s, nearly identical, all ran on 110."
> > >
> >
> > We bought three V890s at one time, and the VAR didn't even realize that
> > they
> > wanted 208! We had already owned 280Rs, 480s, and 490s so I hadn't even
> > thought to look it up.
> >
> > https://docs.oracle.com/cd/E19095-01/sfv890.srvr/816-1613-14/Chapter5.ht
> > ml#23650
> > <https://docs.oracle.com/cd/E19095-01/sfv890.srvr/816-1613-14/Chapter5.html#23650>
> >
> >   When they arrived and we unpacked them, we all just stood around staring
> > at
> > the weird-ass plugs on the power cords and blinking slowly for a minute
> > before
> > the realization hit.  :7)
> >
> >   Eventually I think we just had the campus electricians pull a bunch of
> > extra
> > circuits under the raised floor so we could line them up in a row to look
> > cooler.
> >
> > - Will
> > b
> > Will Enestvedt
> > "I mean, you can teach yourself, but I've found with a lot of things that
> > I've taught myself that I needed a better professor." - P.J. Ob Rourke
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
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