Why are you keeping the lids partially open and drawing excessive power for the ...

shazow · on July 29, 2015

"They are actually being held open 7mm by a custom 3D printed wedge. This opening allows for the screen to be used for testing as well as ample air circulation. You can’t see the temperature sensors tucked into each notebook’s keyboard area."

Air circulation makes sense. There is a vent in between the screen pivot and the base, and also the gaps in the keys allow for some heat to escape.

Agreed that the screens should be turned off, though. Could just turn the brightness down to 0.

louis-paul · on July 29, 2015

What's brilliant is that when the screen is closed, the same vent opens on the back of the computer. That's extremely elegant.

hypron · on July 29, 2015

Because 3d printing is cool and trendy.

bshimmin · on July 29, 2015

My first thought was, "Wouldn't a folded beermat have sufficed?"

BuildTheRobots · on July 29, 2015

Lots of DCs refuse to let you bring cardboard into the hall _at all_, never-mind keeping some in a rack.

skuhn · on July 29, 2015

It is a complete no-no, even if your DC doesn't say anything to you about it.

Just think of the potential loss of equipment if the sprinklers were to activate in a datacenter suite -- and if the flammable material is located in your cage, it's going to be you or your insurance covering that.

Tiksi · on July 30, 2015

Usually the fire suppression is halon-like gas systems (can't use halon anymore), sprinklers are an absolute worst case last resort.

But yeah, there's plenty of

  NO CARDBOARD ON THE DC FLOOR
  NO CARDBOARD ON THE DC FLOOR
  NO CARDBOARD ON THE DC FLOOR

At every multi-tentant dc.

skuhn · on July 30, 2015

I have only seen dry-pipe water systems lately, since halon is long gone.

I did see one system that used HI-FOG sprinklers. Smaller water droplets are supposedly able to extinguish a fire with significantly less water. You're still sad, but maybe you can salvage more equipment.

Tiksi · on July 31, 2015

I've seen a few chem agent and inert gas systems, but only when someone realized cost of equipment + loss from downtime > cost fire suppression system, which is less often than it should be.

dry pipe systems are probably the most common though.

Debilski · on July 29, 2015

Why use a menubar program…?

    $ man caffeinate

yuvadam · on July 29, 2015

Yes, that :)

axx · on July 29, 2015

My first guess is heat.