VMware

November 06, 2008

Green IT: how much are you saving?

Shannon Snowden went back and did a check on their power/hardware savings numbers from the virtualization work they are doing at New Age Technologies. "Green IT" as an overhyped topic of the day may come and go (I actually don't think it won't go too far away this decade), and you may even have plenty of room left in your data center (if so, congrats on your forward thinking and large capital budget), but the fact remains that the power savings are real, and that's dollars left in your bank account.

Link: Green IT and Virtualization Real Numbers | Virtualization Information.

So, I decided to run some numbers on one of our largest server virtualization projects this year and the results really are a great reminder that what we are doing is important.

We have one client that we have virtualized about 1,000 servers this year alone. Using VMware’s Green Calculator, check out the results.

  • Energy Savings: We saved over 6.6 million kWh of energy and cooling costs for the servers
  • Server Hardware: We saved over $5.2 million in hardware costs
  • Energy Costs: We saved over $660,000 in power costs

Update: if you're interested in a greener data center, also check out this webcast: Lean and Green: A Simpler More Cost-Effective Datacenter on November 13.



February 29, 2008

RedMonk's James Governor: How Virtualisation Improves the Environment

James Governor posts on the plane home from VMworld Europe over on his Greenmonk site. As 'open-source' and 'bottom-up' analysts, the RedMonk folks are very clued in and have their ears close to the ground.  Green IT translates directly into dollars even if you don't care about that 'good for the planet' stuff.

Link: How Virtualisation Improves the Environment: VMing the World.

Running VMware on production servers for Windows-based applications can drive utilisation up from only 15% into the 90%+ mark. Not only can virtualisation help an organisation to make its existing servers run more efficiently, it can also reduce total numbers of servers by adding more flexibility into the mix. What is the difference between a QA server, a development machine, or a production box? Not much. By making it easier to provision, re-provision, and decommission servers virtualisation can reduce the need for every silo to have its own boxes. Centralising a server sprawl can help an organisation get a handle on its total energy consumption, and potentially lower cooling and energy costs through economies of scale. ...

If the only reason an organisation chooses to go down the virtualisation route is to lower costs that is fantastic. Doing so doesn’t make the efficiency gains less significant. Cutting costs and going green go hand in  hand. ...

I heard a few nice examples at VMworld. Thus Aspen, the reinsurance company, is currently rolling out thin clients, more like old school mainframe terminals but with rich media capabilities, to its end-users. Aspen calculates, in conjunction with their consulting partner BSG, that the average Windows PC consumes about 150 Watts of power. The new thin clients- nearer 8. Watts not to like? Aspen is even considering rolling out these thin clients to its users at home. ...

Efficiency is green- we should praise efficiency, not bury it. The reasons don’t matter- but the results do. I spoke to someone this morning who said customers don’t really care about green, but just wanted to know how many dollars they would save in deploying virtualisation technology, and therefore tech companies shouldn’t talk about eco issues. I think this misunderestimates some important dynamics. Few customers are going to choose a technology just because its labelled green, its true, but some might well be put off by a supplier arguing that green issues don’t matter.

If green IT is a fad I am going to celebrate it while it lasts. VMware has already done a lot for the environment, just by helping us make Windows servers more efficient, whether or not it markets the fact. Thanks Diane and Mendel!

February 12, 2008

Ask the Expert: Green Storage for the Enterprise Data Center

Over at VMworld.com they have just started the second "Ask the Expert" session, this time featuring Larry Aszmann, CTO of Compellent Technologies. You can view Larry's presentation online, and then Larry has promised to stick around for a few weeks to answer your questions.

[Update: just finished watching Larry's presentation and it's very interesting. It's really much more about the Green Data Center and how to reduce your spend than an advertisement for Compellent's products. Some factoids: 80% of data center energy is wasted; data center energy consumption is going to double from 2006 to 20011. Here's the kicker: 2/3 of data center energy is on supporting your IT devices -- servers, storage, networking. Data center buildout is extremely capital intensive (and is a gift to your landlord when your lease is up). So every time you increase the energy usage of your servers & storage, your total energy spend goes up 3x as much. Thus, virtualize your servers and look at your storage. 25% of disk space is actually used -- so use thin provisioning. 80% of your data is inactive and rarely accessed, so use ILM -- information lifecycle management -- that puts inactive data on slower, less power hungry devices. Literally cool stuff.]

Link: VMworld: Compellent Expert Session.

February 11-22, 2008

Larry Aszmann, CTO of Compellent Technologies
Lawrence E. Aszmann has served as CTO and Secretary since co-founding Compellent in March 2002. From July 1995 to August 2001, Mr. Aszmann served as CTO of Xiotech, which Mr. Aszmann co-founded in July 1995.

Expert Session Overview
Compellent Storage Center is one of the most powerful and easy-to-use SAN in the marketplace. Compellent offers technology independence that allows enterprise customers to mix and match iSCSI and Fibre Channel connectivity and manage multiple tiers of Fibre Channel and SATA disk technologies from one pool of virtual storage. The powerful GUI manages native thin provisioning, hardware snapshot, snapshot replication and automated tiered storage all from a web browser with no server-side code or agents.

November 06, 2007

Green data center, green campus

PG&E wecandothis.comI'm working on my Facebook account last night (look for more VMware-related activity there; come on by!) when I hear "virtualization" and "data center" on the TV. That's unusual enough that my ears perk up and I reach for the Tivo remote to get the whole thing. Turns out PG&E has launched a new site, wecandothis.com, about energy efficiency. Part of the effort is in promoting their virtualization rebates for data centers that reduce their hardware footprint. Unfortunately, it's a crappy Flash site, so I can't point you directly to the virtualization video, but go there and click on the computer that labels itself "Server Virtualization" when your mouse hovers over it. The spot has some nice visuals and ends with a lonely rack in the data center you see to your right. Good stuff.

On a similar green theme, our campus was featured in today's San Jose Mercury News. Link: San Jose Mercury News - New VMWare campus is green, open and inviting.

Most companies want to foster collaboration among workers, but VMWare* also wants to make the most of the hilly Palo Alto site, where hundreds of trees already were growing. Kevin Burke, a partner with William McDonough, said that Greene was clear that VMWare's campus should enhance connections between people and with nature.

"We placed a great deal of emphasis on integration of the building with the landscape," he said, noting that 80 foot-tall redwoods and eucalyptus trees were saved, and even a heritage oak was boxed for two years during construction and then replanted. It is thriving. ...

As far as Greene is concerned, it's worth every penny. She wanted the campus to be as sustainable as possible, down to the cafeteria floor composed of recycled beer bottles and hardwood floors elsewhere on the campus that were saved from a Wisconsin barn once owned by Thomas Edison.

Among her favorite features, however, are the bridges, which allow employees to walk from building to building. She said she got the idea for bridges from one of Apple's Cupertino campuses.

"It's the feature that has gotten the most feedback as to why people enjoy it," Burke said. "People can get up from their desk and go for a walk. It's a marvelous stroll. Plus, there's something fun about walking across a bridge."

Windows, too, were given high priority, not only for their ability to let in light, but also fresh air. At VMWare, 750 windows open and close.

Love the new campus, the bridges, and our windows that actually open. Ah, fresh air. It can get pretty bright, so I'm seeing umbrellas, tarps, and other light-blocking strategies crop up.

The interior layout is also good, but a little twisty when you're trying to give directions. Although there's a lobby for visitors with a cool waterfall, the rest of the place has no 'front' and no long corridors or other thoroughfares through the buildings. Every building mixes engineering with other groups, so there's a great mix of people as you zig-zag across the campus.

*p.s. VMware, not VMWare, please. Doesn't the SJ Mercury News have copy editors?

December 28, 2006

Blogs to watch: Blade Watch

Blade Watch is a good blog to watch. Martin MacLeod covers topics of interest to the data center, such as virtualization, and, of course, blades. His links are mostly to the same trade journals as the rest of us but he has managed to catch some articles that slipped through the cracks, and he also adds his own commentary.

Recent posts:


December 18, 2006

One-third virtualized, already saving thousands on power

Link: Power savings through virtualization « Documenting a virtualization project.

So far, 33% into our project, we have been able to reduce our power requirement in datacenter 1 by 3.7 KiloWatts (18.7 down to 15.0) and in datacenter 2 by approximately 1.5 KiloWatts. ...

 

Because we are virtualizing everything to one production datacenter we will eventually be able to shut down datacenter 2 for production (which will mean less stringent requirements on cooling, UPS etc.). It will be interesting to see what the final outcome is for the project.

So how's my math .. 5 kW savings per hour x 24 hours/day x 365 days/year x $0.10 per kWh = $4555 savings in a year. I think they just paid for an ESX Server with that. If they lived in California, they'd be getting addititonal credits from the electric company. And that's before they pull down datacenter #2.


November 17, 2006

Storage virtualization could use some rebates, too

 

David Merrill of Hitachi Data Systems wishes there was a power company rebate for storage virtualization as well as for server consolidation. Link: David Merrill’s Blog » Blog Archive » A Power Company’s Reward.

Storage consolidation can save in total electric costs. Storage virtualization cannot always make that same claim. This can be attributed to virtualization encouraging the extended use of older arrays within the storage pool. Extending the useful life of IT assets is usually a good idea, but can offset plans to reduce electricity. Older arrays consume more kWatts per TB than newer systms. Virtualization with newer arrays, and providing tiers of storage (out of the frame) has also demonstrated lower kVA, BTU and kWatt consumption.

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