Name: Googleデータセンター効率化のベストプラクティス - フル動画 (Google Data Center Efficiency Best Practices -- Full Video)
Uploaded: 2021-01-14T04:43:01.000Z
Duration: 10 min 1 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

ERIK TEETZEL: Here at Google, data centers are very

They are how we deliver all of our web services

A data center can mean a variety of things.

It can mean a small closet filled with a couple of

machines all the way to very large warehouse scale

buildings that are optimized for power use and IT computing

At Google, we spend a lot of time innovating the way in

which we design and build these facilities to minimize

the amount of energy, and water, and other the resources

In terms of the results of all of the work that we've been

doing over many, many years, now we use half of the energy

To put things into perspective, the entire ICT

sector, that includes mobile phones, computers, monitors,

cell phone towers, represents roughly about 2% of global greenhouse

There's design choices that you can make for energy

And these things are just best practices.

And adhering well to best practices, that's how you can

The results of the these types of activities return

Google millions of dollars in energy savings.

We've invited several members of our data center team

to explain some of these best practices to all of you.

KEVIN DOLDER: The first step in managing the efficiency of

your data center is to make sure you have the

instrumentation in place to measure the PUE, or power

PUE is the ratio of total facility energy to IT

equipment energy within your data center.

It's a measure of how effectively you deliver power

In 2006, the typical PUE of an enterprise

Which means that for every one watt of IT energy consumed, one watt of

overhead was consumed by the facility to deliver the power

You want PUE to get to as close to 1.0 as possible.

KEVIN DOLDER: Over the last 12 months, our TTM PUE was 1.16.

We've continuously measured that and it's gone down nearly

every quarter since we began reporting it back in 2008.

Last quarter the lowest data center was 1.09.

Ideally, you should measure PUE as fast as you can, as often

And the more often you can measure it, the more

It's important to measure PUE over the course of a year --

annually or quarterly -- to get a meaningful result.

If you just take snapshots in time the information won't be

realistic and it won't really be an actual measure of how

One way to make it easier to manage is to incorporate the

PUE measurements into your building management system.

We do this at all of our sites at Google.

Without having easy access to this data we wouldn't to be

ERIK TEETZEL: Once you have the ability to measure and

manage your PUE, the first step in terms of reducing your

data center energy load is to focus on the

The most important thing here is to eliminate the mixing of

Containment can be achieved through many different

One thing we found very useful at Google is CFD analysis to

see where are your hot spots and how is your air flow going

actually be directed in your data center?

By doing so, you can actually model the way in which air

flow will go and it helps you make very simple design

choices to improve the air flow in your data center.

For example, in one of our computing and networking

rooms, we call them CNRs, we actually did some thermal

modeling to see exactly what air flow was doing.

Through that modeling we realized that the intake to

And that by simply piecing together some sheet metal we

could create extensions that would dramatically increase

KEN WONG: Here in this corporate data center at

Google, we've implemented meat locker curtains that are very

These are hung from the overhead structure and they

separate the cold aisle, which is actually hot, and the hot

We are set now to enter to hot aisle containment door.