All my peeps have a smartphone!
Today is a hot day here in Maine. When it gets hot, in the 90′s, things slow down quickly. You have to remember that our bodies, our minds and our buildings are programed with the goal of staying warm. Staying cool just 
isn’t a necessity, since we have four warm days out of the year.
Like I said, today is hot. So to help deal with the heat, I decided to write about a light subject, something easy to swallow. Today’s blog is about my peeps and their SmartPhones.
Jon has an iPhone. I nag Jon everyday for being an Apple lemming. My issue with Apple goes back a long time and is purely personal. I was a eight years old and I really wanted a Macintosh. My parents couldn’t afford a Mac, it was only for the better off people. This divide made me bitter.
As far as a phone goes, it is one of the best. The double touch screen is slick, over all he doesn’t seem to have any complaints. The software selection is good but regulated. If Apple doesn’t want you to build a program for their phone, then you can’t sell it. Again, I’m kinda bitter about this.
I have the AT&T Tilt. This is a Windows Mobile phone that has its good and bad points. The best thing about my phone is that it is NOT an iPhone.
Since the Windows Mobile environment stretches across multiple platforms and has been around for quite a while, the software selection is abundant. In general it is an open environment and has a vibrant community.
The screen isn’t as responsive as I would like and sometimes you can really mess up your phone if you install the wrong piece of untested software. Can you say “Bricked!”?
Dale just got a Google phone. Dale was one of those people who always said, “I don’t need a phone like yours. I only make calls.” It has been a few days, and he has clearly changed his song. He is now a disciple of the goodness that is SmartPhone technology. Dale is installing apps, using GPS, texting and making calls. He is a happy camper.
So why am I telling you about my peeps and their different phones? Simply put, we have three different camps of people, with three different ways of thinking.
You have your iPhone people, who want their provider to make sure every app works on your phone, protects you from any bad application and distributes their apps via one common provider. You get a good, safe and friendly phone.
You have the Windows Mobile camp, who believe that any app, no matter how bad or untested it is, should be available. They want choice, multiple phones, multiple options and freedom. The Windows Mobile world has its ups and downs. If you are not careful, you can get more then you bargained for.
The GPhone has a large community. Their software is built on an open source environment. They are safe, regulated by the users, tested by the users and over all crunchy.
Even though all of these phones are different, they still can easily communicate with each other. Maybe our politicians should learn a lesson from the ups and downs of the SmartPhone market? Maybe they could learn to communicate with each other in one common protocol and have the luxury of error checking?
What a wonderful world we live in? I wonder what technology my daughter will use when she is my age?
- JimmyD
Ravica’s Sensor Controlled Relay – The Rosetta Stone?
Filed under: airflow monitoring, Data Center, environmental monitoring
A few weeks ago I talked about using the sensor controlled relay to turn on lights once an alarm had been triggered. In this blog I wanted to give another example of how versatile these units can be.
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
School uses Ravica sensorprobes to measure green energy
Filed under: environmental monitoring, power monitoring, SensorProbes
We just received a call from a community college in the Mid West. They wanted to purchase four AC Voltage Detectors to integrate into their solar and wind power project. Since I am big on alternative energy and the application of technology to measure it, I jumped on this call right away.
The energy project is a collaboration between the Engineering and Information Technology programs of the college and funded by a local community grant. The goal of the project was to help middle school students build two unique energy sources using the power, and in the end, collect data for reporting. Each energy segment needs to be monitored separately. The first segment was going to be wind and the second would be solar.
The solar side would consist of two collectors and one battery storage unit. Each one of these collectors would have a sensorprobe (the storage unit would have a sensor probe and a digital voltmeter). This would allow the team to record how much energy the cells produced, at any given time. We would also be able to tell the combined energy sent to the storage unit and, at the same time, tell how much energy is in the storage unit.
The wind side would have a similar setup. Each turbine would have a sensor. This would tell us how much energy the turbine was producing. Adding the digital voltmeter to the main feed of the storage unit would tell us combined energy production. The AC Voltage Detector would tell us the state of the wind turbines at any time. What makes the wind side of the project different is that the turbine can produce energy any time.
In both of these cases, the students would have to construct the power units from general industry parts. They couldn’t buy an off the self solution. One of the reasons they decided to go with the Ravica line of sensorprobes for data collection was due to the fact that the probes were totally independent of the energy production system. Setting alarms gives you the added feature of being able to monitor the entire system. This is what they needed to meet the needs of the project, not to mention it helped them come in under budget.
On the data side of things, the team would compile the data from each sensor and reference hourly data from gathered the NOAA weather data. They would then take all of this data and feed it to a community web portal. In the end, they would be able to see how much energy each unit was able to produce at any time. They would all be able to see how weather played in each of the individual units production, and if the entire system compensates for any loss per unit.
I am going to keep this project on my radar. It’s exciting to see these kids having fun and exploring alternitive forms of energy.
- JimmyD
The not so funny side of Network Management
Filed under: Data Center, environmental monitoring, temperature monitoring
Something odd happened today.
I was in a planning meeting with my manage
r 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
Securing your data center with Ravica equipment
Filed under: Data Center, Intelligent Sensors, Security Monitoring, SensorProbes
I started working with an interesting client today.
The company is a small hosting service provider with approximately 100 clients. What made this company different was that their clients would come on site quite often. Each client would has a key card; this identifies who is coming in and out of the server room. The problem is that the cards were being handed off to other employees. Since the company promised the utmost in security, this started to become a concern.
The goal of my client was to provide a video record of each entry. To accomplish this, I suggested that we add security sensors to each door. This would tell us when each and every person went through the door. Next, we added multiple security cameras, to record who was in the server room. The dry contact sensors would also give us a good idea of when the person left. The next hurdle was the lights, since they are off most of the time.
We used the Sensor Controlled Relay to turn the lights on and off in the room. This gave the security cameras more then enough light for recording. This was implemented via the alert from the trigger of the security sensor.
The Sensor Controlled Relay is easily controlled by any of Ravica’s extensive selection of sensors. The relay can provide automatic responses to sensor alerts. This made it easy to configure a scenario where the security sensor on the door was tripped and the lights were turned on.
In the end, the process worked perfectly. When a customer entered the server room, not only was their entry logged via the keypad, but they were also getting video record of that visit. We are currently working on providing a common interface between all of the data sources.
- JimmyD
5 tips to protect your data center hardware
Filed under: Data Center, environmental monitoring, humidity monitoring, power monitoring, temperature monitoring, water leak monitoring
I work with network administrators everyday and I hear one common story. They are not buying servers. The IDC’s Worldwide Quarterly Server Tracker supports me on this. Server vendors are reporting that their business is off 24.5 percent from last year, falling to $9.9 billion in the first quarter of 2009.
They don’t have the budget or can’t get the budget to update their aging equipment. So, what can these admins do to extend the life of their equipment?
Just like an older automobile, maintenance and proper care of the equipment can easily extend your equipment’s life. Constant monitoring of your system inside and out can save you from loosing mission critical servers. Environmental monitors like the temperature and humidity, airflow, smoke and water sensors can be used to make sure that the environment that your systems operate in are the best they can be.
Now, I know what you are saying, “Jim’s just a salesman and wants you to buy something.” Although I might get excited about a product and preach its goodness, I am not a sales person . I might dream of being the star of a Shamtastic infomercial, but trust me, I’m not. What I do want you to know, is that there are some simple things that you can to to help save your hardware.
- Your server room is not a storage area! If it is, it really shouldn’t be. Extra stuff in the room can cause heat issues and possibly be a fire hazard. Keep the area clean and free of obstacles.
- Manage your cables properly. I had a boss who had a hang up on making sure the all cables were organized correctly. You guessed it, I didn’t think it was all that important. In hindsight, I was wrong. Keeping them organized is great for physical management, but more importantly, it makes it easier to manage airflow. Be it a cable tunnel or just pulling them together with a zip tie, making sure your servers get the correct ventilation is important.
- Have a physical maintenance window for your machines. It might bring you back to youthful A+ days, but making sure the servers are dust free and cables are in the correct place can help immensely.
- Monitor the servers health with an SNMP Trending app. Most servers can give you CPU, Server Temp, Fan Info and other valuable information, via a simple SNMP walk. A SNMP trending application, like Denika, will allow you to gather historical information on this data and alert on it.
- Monitor your environment. As I mentioned before, monitoring the room temp, humidity and airflow will make your admin life a lot easier. If you have some room in your budget, this might be the best way to spend it.
So there it is. I guess the old saying, “An ounce of prevention is worth a pound of cure,” is correct. Even in today’s super digital world!
- Jimmy D
Five major data center outages reported last week
Filed under: Data Center, power monitoring, SensorProbes, smoke detector
The website Data Center Knowledge recently published an alarming report about five major data center outages that occurred in the past week. Here is a brief breakdown from the article.
- “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 future of data center design
Filed under: Data Center, environmental monitoring, humidity monitoring, temperature monitoring, water leak monitoring
I just read that the NSA is going to build a 20 acre data center in Utah. This one million square foot center will allow the NSA to decentralize its efforts and provide better security. Just imagine the amount of power it will take to operate a data center of this size? This Slashdot article points out that one of the biggest reasons why the 
government is building this compound is due to its power consumption and the current location’s inability to provide the needed electricity. The government estimates that it will use at least 65 megawatts of power or about the same amount that Salt Lake City consumes.
“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
The SensorProbe can Tweet!
Filed under: environmental monitoring, humidity monitoring, temperature monitoring
I don’t want to ride on the coat tails of Jon’s post about being able to send temperature alerts via Skype, but I guess I have no choice. I quickly wanted to point out that you can also send Twitter alerts form your SensorProbe. I imagined this as a second wave alert. Kinda that last ditch effort before the ship goes down. Ok, maybe I am being a bit over dramatic but in reality, this can be a great way to do a broadcast alert.
The process is easy. Browse to TwitterMail, insert your twitter username and password to get your TwitterMail address instantly. Then go to your SensorProbe and create an email alert. Alert goes off, email is sent and Twitter is fed. Make sure that everyone that is supposed to recive these messages are followers of your Twitter account.
Humidity Monitoring – Unforseen danger in your server room
Filed under: Data Center, environmental monitoring, humidity monitoring, Intelligent Sensors, SensorProbes
I was working with a client who had to replace multiple mother boards in their server room. I was surprised that he had to replace so many, so I gently asked, “What happened?”
He said he knew I would ask him that question. Over the weekend, the air conditioning unit for their server failed. It didn’t stop, it just stopped pushing out cold air. The room didn’t get too hot (thank goodness), but it produced a lot of moisture.
Apparently, it produced too much moisture, which caused condensation on the server rack that was closest to the air conditioning unit. The end result was multiple mother boards failing.
We spent the next few minutes going over the cost of the replacement boards and drives. I then let him know that we had a humidity probe that would alert him when humidity reaches a certain level. I suggested that he add it to his order and not take the risk of loosing another segment of his server room. He thought that it was a good idea and bought two!
“Relative humidity should be maintained at a level between 30%-50%. Failure to adhere to these particular specifications could result in serious corrosion of the copper wires that are contained within the UTP and STP. Such corrosion would deter efficient functioning of the network.” – Excerpt from Cisco Networking Academy book material. So I guess the old saying, “An ounce of prevention is worth a pound of cure,” holds true. Take the time to monitor for humidity. It could help save your equipment.
- Jimmy D