From these two examples, it’s clear that there are options out there for designing sustainable HVAC systems that can meet the massive demand for cooling in data centers and server rooms. There is still a long way to go for data centers to be completely environmentally sustainable, but the industry is moving in leaps and bounds in that direction.

There should also be a number of sensors in place that can detect when anyone, authorized or unauthorized, accesses the data center.  The following 5 tips show how Ravica can offer effective solutions for that final line of defense.

• Install the Right SensorProbe. For optimum security monitoring, choose a SecurityProbe model.  The SecurityProbe has the same easy-to-use web interface as the BitSight with a Linux operating system that offers 128 MB of Flash and 64 MB of SDRAM.  With 8 ports for sensors and connections for 4 external cameras on each SecurityProbe, you can monitor all of your security conditions from a single interface.
• Monitor All Potential Entry Points. In order for a security breach to occur, an unauthorized person must be able to physically gain access to the data center and do so unnoticed.  Make sure that doesn’t happen by installing a security sensor on every door, window, or emergency exit that could provide access to the data center.  The security sensor has a magnetic open/close switch that will trigger an automatic alert when any entry point is accessed.
• Install Motion Detectors. As another line of defense, install a motion detector at key locations that will alert security personnel that a potential security issue is occurring.  The Ravica motion sensor has a RJ45 jack to plug directly into a port on the SecurityProbe.
• Integrate High Quality Security Cameras. Install a variety of security cameras including fixed and Pan/Tilt cameras that can proactively capture crucial images as the events occur.  With the Ravica web-interface, you can set up notifications that will automatically trigger a time-stamped, picture log when an event occurs with the security sensor, motion detector or any other sensor.  The pictures are captured in a standard JPEG format at up to 640 x 480 pixels, so you get a clear image of the event.
• Send a LOUD and Clear Message Regarding Security. Not only can notifications be set up to send email, voice, or text alerts to security personnel when a potential security breach is occurring; you can also include a siren/strobe light that can be triggered automatically by an alarm status on any other sensor.  The siren/strobe can also be triggered manually from the web-interface, deterring nefarious activity and giving a call-to-action signal to other personnel in the vicinity of the breach.

Whether your data center is large or small, Ravica can be part of the solution to help you protect your physical and intellectual assets from theft or sabotage.

Joe, the Admin for an ISP,  had purchased multiple water sensors and temperature sensors for his six data rooms. Around 3:20am on a Sunday he got an alert from his SensorProbe. Apparently, the temp in one of the server rooms was rising. Since he was on call, he decided to get into his truck and see what was going on. On his way to the building, he received another page. The water sensor had triggered. He was now very concerned.

Once he reached the data center, it was obvious to him what had happened. One of the valves of the heating system started to reached its limit. This quickly caused the temp of the pipes to rise, which is what triggered the temperature sensor.

The relief vales reached their breaking point and started to spray water all over the first data room. He was quick to let me know that he shut down the water and saved the other data rooms from being soaked, since they were in line and showed signs of having the same behavior.

That means the investment in the temperature monitoring probes saved them thousands of dollars. If that isn’t the best reason to buy then I don’t know one that is!

- Jimmy D

“Mount Wilson is in danger from the Station fire burning near L.A. Their servers have gone offline, but there’s a temporary mirror cam. It doesn’t look good. Picture twenty-four on the L.A. Times photo gallery shows the observatory from the air. If anyone has any inside news on the condition of the facility, I’m sure there are lots of people on Slashdot that would love to hear it.”

It got me wondering about what type of SensorProbes they have. Most companies will never see this size of fire, but even a tiny fire can put a server room out of commission. That is why it is so important to use sensor probe technology to monitor our environment and alert us when something is wrong.

Anyway, I don’t want to use this as a sales pitch. So, let’s use the fire in California to remind us to check our home and office fire detection systems.

My prayers go out to all of the fire fighters, the people who have lost their homes and the people who’s homes are in danger.

- JimmyD

Solutions . . .

A great example is the solution that I found for a local amusement park. One of their outdoor venues was having an issue with their digital photography equipment overheating. It wasn’t economical to add air condition to the unit, so they needed to find a way to turn on multiple overhead fans automatically.

The management of this unit fell under the IT department, and the admin wanted to remotely monitor the data from his office (or any other portable device). The end solution was to monitor multiple environmental variables with the Ravica Sensor Probe and use the Sensor Controlled Relay to switch on the fan when the room temperature rises beyond the threshold level.

Since the sensor control unit has a user friendly web interface and an autosense feature, setting up the Sensor Controlled Relay is easy. The Sensor Controlled Relay can also be controlled via external computers, using the included SNMP command line utilities either interactively or programmatically.

From the unit itself, you can monitor the status of the Sensor Controlled Relay by four LEDs on the board. You can also monitor the unit remotely by using SNMP traps or the web interface, as well as e-mail and SMS alerts.

Implementation . . .

“The Sensor Controlled Relay provides 1 high-power SPDT 5V relay, with the maximum load up to 15A at 220 VAC. It includes Metal Oxide Varistors (MOVs) and Snubber circuits to protect the open contacts of the relays from high voltage spikes or noise transients. It monitors the power and load, and accepts a control signal, which is sent from the SensorProbe.”

We outsourced a local contractor to do the electrical work and the end result was better then we expected. Not only did we eliminate the equipment from overheating, but we are also able to trend the temp of the units over a given amount of time. This gave the admin a better picture of demand and heat generation.

Another thing to remember is the inlaid protection of this sensor. The Sensor Controlled Relay, it has a built in 16Amp circuit breaker and a 15Amp fuse (380 VAC, 125 VDC) giving it double protection for the external devices and possible damages by electrical fault. This assures protection for your sensor and your investment.

Conclusion . . .

As you can see, the Ravica Sensor Controlled Relay has many uses. It’s ability to control an array of analog devices makes it a versatile solution. It’s ability to monitor and protect itself make it a smart investment. That is why I recommend it every chance that I get.

- JimmyD

Yahoo last month announced plans to build its greenest data center in Lockport, N.Y. Yahoo co-founder and Chief Yahoo David Filo explains in his blog that the data center will be designed to use 100% outside air to cool the servers. And the resource used to power the data center and the servers will be the renewable hydroelectric power from the Niagara Falls.    
Filo writes that the data center design will have an annualized average PUE (power usage effectiveness) of 1.1 or better. The company’s other facilities in Washington are powered by wind and hydroelectric sources. Outside air (or what the industry terms “free cooling”) is used for cooling most of the year, helping Yahoo to reduce energy consumption by 40% to 50%.

Search rival Google uses free cooling almost year round in its data center in Belgium, where the average summer temperature is between 66°F and 71°F (19°C and 22°C), writes Data Center Knowledge. That temperature range falls way below the 80°F (27°C) temperature that Google maintains for its data centers, adds Data Center Knowledge.

You’ll recall last week in this blog that our friend, Chuck Cahoon, solutions architect at CDW, recommended that the ambient temperature range in data centers should be between 68°F to 75°F (20°C to 24°C). Companies that have set the temperature higher than 75°F say they see savings spent on air conditioning as a result, according a separate Data Center Knowledge article. That article cites Mark Monroe of Sun Microsystems as saying that data centers can save 4% in energy costs for every increased degree in baseline temperature.

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) in its 2008 ASHRAE Environmental Guidelines for Datacom Equipment expanded its recommended operating envelope. The low-end and high-end temperatures in its 2008 guidelines are 64.4°F (18°C) and 80.6° (27°C), respectively. This differs from its 2004 guidelines for low-end and high-end temperatures of 68°F and 77°F, respectively.

However, Data Center Knowledge warns that raising the temperature could leave companies with less time to recover from a cooling failure. Operating at a higher temperature should only be done by customers that have a high understanding of the cooling conditions in their facility, Data Center Knowledge adds.

The ASHRAE guidelines also note other issues for data centers operating at higher temperatures:

• Gains in energy efficiency could be offset by the data center equipment having to work harder to compensate for the higher inlet air temperatures.
• The higher temperatures could cause condensation on the refrigerated coils of refrigerated cooling systems, requiring data centers to humidify to replace the lost moisture in the air. (This is where humidity monitoring is essential.)
• Higher temperatures could result in noisier data centers.

For data centers operating at higher temperatures, environmental monitoring that encompasses temperature monitoring, humidity monitoring, and water leaks is key.

I was in a planning meeting with my manager and my AT&T Tilt started to vibrate. I find this very annoying. Of all things to happen during this super exciting meeting, this had to take the cake. Yes, I am being sarcastic and a bit over dramatic. The issue is still the same, I hate being annoyed.

The real point to this rant is to point out the subject of the alert. It was a SMS page from my Ravica tempature probe. It had been violated.

This issue raised multiple questions. The first, and most  important, would be how to politely excuse myself from the meeting. In general, this wouldn’t be a hard thing to do, but my manager was excited about the new data room expansion project. By excited, I mean elated, and by elated, I mean that he expected everyone to have the same level of passion or face the most harsh punishment executed on mere mortals.

Knowing that I could lose my admin privileges, I forged on. I told Jon that something is happening in the sever room and had to leave. He said “ok” and went on with his conversation.

Puzzled, I quickly went into the server room and found the issue. Brandon, our new, green intern had placed his super hot cup of coffee next to the temp sensor. He was in the process of cleaning up cables and listening to the Ramones on his headset.

The heat from his coffee cup quickly raised the temp around the sensor.

From this I have learned two things. The first is that you should never leave your interns unattended. They can cause way too much damage. The second is to not locate your temperature sensor where someone can obstruct it in any way.

Now I have to explain this to my boss. Wish me luck.

- JimmyD

• “On Monday June 29, Rackspace Hosting (RAX) experienced a power outage at its Dallas data center that left several areas of the facility without power for about 45 minutes, knocking many popular customer web sites offline.
• “Early Thursday Equinix Inc. (EQIX) data centers in Sydney, Australia and Paris each experienced power failures. While the power outages were brief – Equinix said the Sydney event lasted 12 minutes while power was restored in Paris in just one minute – many key customer sites took considerably longer to recover their systems. The Sydney event led to disruptions for VoIP service in parts of Australia, while the Paris outage caused downtime for the popular video site DailyMotion and the French portal for hosting firm ClaraNet.
• “Google App Engine, the company’s cloud computing platform, had lengthy performance problems on Thursday, experiencing high latency and data loss.
• “A fire at Fisher Plaza in Seattle late Thursday night left many of the building’s data centers without power. The fire in an basement-level electrical room triggered sprinklers and caused extensive damage to generators and electrical equipment. The damage left tenants with backup plans offline for hours, and those without backup sites down until temporary generators restored power early Saturday morning. The biggest impact was at payment gateway Authorize.net, which was offline for more than 12 hours, leaving its merchant customers unable to process credit card sales. Other sites experiencing lengthy downtime included AdHost, GeoCaching and Microsoft’s Bing Travel.
• “Early Sunday, July 5, a fire at 151 Front Street, the major carrier hotel in Toronto, knocked out power on several floors of the facility used by Peer 1 networks. Power was restored in about 3 hours, after a damaged UPS unit was bypassed.”

The author, Rich Miller then goes on to point out some tough questions and the lessons learned from these outages.

Although it is surprising that data centers of this size can experience an outage like this, what is even more surprising is that it all happened in a week’s span. I wonder, is the National Security Agency going to look into this?

The equipment used to monitor this size data center is monumental, but even the smallest IT department can obtain economically priced sensor equipment, like the Bitsight8, combined with Intelligent Sensors, like the AC Voltage Detector and the Digital Voltometer.

“The agency got a taste of the potential for trouble January 24, 2000, when an information overload, rather than a power shortage, caused the NSA’s first-ever network crash, taking the agency 3 1/2 days to resume operations. The new data center in Utah will require at least 65 megawatts of power” - Salt Lake Tribune

Another cool data center design is the one that Google is planning to build. The entire center will be built on a floating barge, and will use the waves of the ocean to help power the facility. It will also use ocean water to cool the equipment.

Last, but not least, is the underground data center in Sweden. This has to be the coolest data center ever! It is located underground, can withstand a hydrogen attack, has a waterfall and a greenhouse. It can generate its own power, and is equipped with triple redundancy Internet backbone access.

I wonder, what type of environmental monitoring sensors do they have? What type of redundancy and fail-safes? Designing a data center like these is a monumental task. I can’t wait to see what the future holds for Data Center Design.

- Jimmy D

I spent my lunch time researching my proof of concept design. I Googled Solar Panels and found everything from cool DIY YouTube videos to full service companies. Finding a package wouldn’t be that difficult. Monitoring the package and integrating its data into our current network would be a little more involved.

Monitoring the output of a solar panel can be done with the Ravica Power Monitor. The power monitor can read both 120v and 22v. With this monitor you are able to determine up/down state and measure voltage on a constant basis. With this data you can be alerted on the sensor exceeding a pre-defined threshold with  industry leading notification options like: SNMP traps, email, SMS, MMS and the recently released Skype support. You can also use the data to trend the panels output.

I was done, a quick proof of concept that could work. Imagine being able to show your company how much the IT department is saving! It might be a dream now, but someday it will be reality. Bigger ideas have been planned on the back of a cocktail napkin. Mine was in a Google note book, so I am a step a head!

Did you notice that the price of oil is up again?

- Jimmy D