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Making Safe Purchases Online

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by David Ferszt, IT Consultant

As online purchasing is becoming more and more common, many people are being forced to pay by plastic and hope their information is safe.

There are few things you should know to help protect yourself.  First, you should only make your purchases from a computer that you know does not have a virus or keylogger.  Also I would recommend avoiding doing any purchasing on a non-secure network such as Starbucks WiFi.  Be familiar with or do some research on any website you are about to give your credit information to as well.  Places like Amazon and Staples are fairly safe, but when in doubt, search for reviews about the website on Google.

When sending any type of confidential information across the internet, it is also very wise to make sure that the website begins with https vs http.  The “S” stands for secure (the HTTP stands for Hypertext Transfer Protocol…there will be a test later!).  The S denotes that there is some level of encryption happening between the user and the server.  You will notice that most login pages are https; including banks, email servers, and even Facebook.  When making purchases, aside from ensuring the website is HTTPS, you should also pay exclusively with credit cards.

There are also many differences in using credit vs. debit cards.  Consumer liability on credit card cards are often less than that of their debit card counterparts.  In addition to liability, in the event of fraudulent charges, you do not have to wait for your bank to reimburse you if you paid by credit card.  Most important is to check your statements frequently for accuracy.

Track Days @ High Plains Raceway

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by Matt Sanders, Service Manager – Boulder

Let me preface this article by stating, anyone can ride or drive on a track day.  Track days are not only for the Pro’s, but anyone who is looking to go fast or improve their ability to control a vehicle.  For me, not much in life beats a track day on my 2007 Yamaha R6.

I started riding at High Plains Raceway in September 2011.  The track is located near Byers, CO.  HPR is a 2.5 mile road course with a technical and challenging design.  It includes many technical design elements as well as natural elevation changes to help keep things interesting.  The track calendar offers many open lapping days for the car or motorcycle enthusiast.

One of the great things about the track is it provides a safe environment to improve your skills and push the limits of yourself or your vehicle.  Most of the time, they will run sessions of slow, intermediate and fast paced riders / drivers.  There is ample run off around the track, so it is unlikely you would ever hit a wall or other immovable object if you were to lose control.  There are corner workers with a view of the entire track monitoring for any crashes or mechanical failures.  And an ambulance is always on site ready to respond if there are any injuries.  I myself have crashed at HPR and walked away without a scratch.  There are a few safety requirements for getting on the track.

Track days are fairly affordable too.  Generally, it is similar in price to skiing or snowboarding.  At least once you own the car or bike you plan to take.  A half day at the track will run you about $90.  Tires, maintenance and track time are the only real recurring costs.  As you get faster you will spend more on tires and maintenance.  If you really get into it, there are plenty of go fast parts and equipment that you can spend your hard earned dollars on.

My first day on a track, I was rather nervous and definitely slow.  I considered myself pretty fast on the street, but it was clear when I got to the track that I had a lot of work to do.  It took a little while to get used to being passed at high rates of speed.  I ran off the track a little bit at one point when I was too late on the brakes.  As the day went on I started gaining some confidence and even started passing a significant number of other riders.  By the end, I was absolutely exhausted and totally hooked.

Since then, I have been to the track roughly 15 times.  I have gone from a middle of the pack slow group rider to a mid / fast intermediate rider.  I have upgraded my R6, crashed once, had a couple of mechanical failures, lost and gained confidence and improved my best time by over 20 seconds.  I’m still slow by racing standards, but getting better.  I will probably do a couple of super street races this year and I hope to join the MRA as a novice racer next season.

Here is what you might expect from a lap at HPR.

As I stated previously, track days are accessible to anyone.  If you have any interest in going fast or improving your skillset, there is no better place than High Plains Raceway.  I hope to see you out there.

20 Questions: Greystone on Greystone featuring Dave Stokes and Grant Garcia

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Here at Greystone, we’ve launched a newsletter (We’d love to have you sign up here: http://eepurl.com/r3Ovf!  Or, you can visit last month’s newsletter here.

One of the ongoing features of our Newsletter will be a brief “interview” of one Greystone team member by another Greystone team member.

This month, we feature Dave Stokes, Director of Managed Services, as interviewed by Grant Garcia, stalwart member of the Greystone Web Services team.

GG: What Would You Say…You Do Here?

Dave Stokes, proud Father...

DS: My role is as a strategic leader and allows me to be involved with nearly every aspect of our tech side of the house, from potential new client sales meetings to planning existing client technology needs, and everything in between.  I view my role as trying to make a meaningful impact on our staff in order to empower them to deliver our particular blend of genuine communication and earnest service to our clients.

 

GG: Dave, it seems like you may be the fastest man alive. What inspired you to get into marathon running?

If you ever ran with me, we could chuckle about the humor in the first part of this question.  One of my very good friends showed me a video of a trail marathon course then followed up by an elite (Pro) ultra-marathoner bombing down some mountainside and that inspired me.  I committed to running the next year’s trail marathon in that video with him nearly on the spot.  It all looked so cool, fun and exciting…until I actually started running.  That brings me to the next question.

 

GG: What is the most interesting thing you’ve ever done?

The most interesting thing I’ve ever done to date is probably running that trail marathon in the previous question; more specifically experiencing the inward and outward journeys that led to running the actual race.  There is so much more to that type of undertaking than just pounding out 26.2 miles in this case, that I encourage anyone to go for a challenge that seems so much bigger than themselves.  There is a lot worth learning in the process.

Grant and his sweetheart!

GG: Dave, the universe is made of 3 things: dark matter, dark energy, and normal matter. About a quarter of the universe consists of dark matter, 4% consists of normal matter, and nearly three quarters consist of dark energy. These three categories ensure the Universe’s stability. While the gravity of dark matter tries to pull the universe together, dark energy on the other hand tries to push the universe apart. We can be sure these two forces work against each other as we see the distance of stars continue to grow apart. Approximately 5 billion years ago dark energy began to win this tug-o-war. Based on this theory, please tell me in your opinion, does the universe and outer space end, did it ever, will it ever? Or, will the universe and outer space as a whole continue to expand to the point where it is impossible to determine an end? By these means what would even determine an end?

This answer may be a bit of a letdown, but in my experience, not many people really know the secrets of the universe, certainly not me.  It is not knowledge that is handed out casually and even those that are privy to some of these higher laws, tend to only have a partial knowledge at best.  Those who do claim to know are probably just quoting things they have read and believed.  The Universe is vast, powerful, mysterious and when I think about it too much, it pushes the envelope of my comprehension and starts to not make sense.  But, being under a Blue Moon with my wife on the beach, it suddenly all makes sense and for that moment I trust it and my wonder.

Choosing a RAID Solution

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In the article below, Troy Sniff and Mike McManus, two of our IT Consultants, describe some of the basics around RAID storage inside of a server.  Enjoy!

Choosing a RAID Solution
By Troy Sniff + Mike McManus, IT Consultants

Before you can delve into the specifics of choosing a RAID solution, you need to know the basics. Mike explains:

RAID is defined as a “redundant array of independent disks”.  All that really means is that you are using multiple hard drives to improve the performance of your server.  It also provides redundancy that helps lower your risk of total data loss.  The RAID will store the data across many hard drives, but how it handles the data is very different per RAID.

What is the difference between the RAIDs? There are many different types of RAID’s that you can do.  Each one has its benefits and down sides.  It will all depend on what you are looking for.  Each one is different and will depend on if you are looking for higher speeds, lower risk of data loss or a little of both.   It will also depend on the demands of your machine.  That is where IOPS come into play.

IOPS is defined as “Inputs/Output Operations per Second”.  IOPS is basically how many operations are preformed on your hard drive or RAID.  It is the amount of times per second the system is reading from or writing to the RAID.  You will want to ensure that your RAID can handle the amount of IOPS that is demanded by the server or you will start to get “bottle necks” and that will cause performance issues.

Now that you’ve got some understanding of RAID concepts, Troy can explain some of your options more in depth:

In the server realm, picking the best RAID solution can be a tricky thing.  The first thing we need to do is take into consideration the key factors; cost and capacity, performance needs and availability.

Cost/Capacity

There are several flavors of drives these days and the cost is directly related to type and size.  For now, let’s focus on SAS and SATA drive types.  You can buy SATA drives in the several terabyte ranges for fairly low cost.  While SAS capacities are breaking into the terabyte ranges, they tend to cost two to three times that of an SATA drive of the same size.   Cost and capacity boils down to the type of RAID you choose.  With different types of RAID levels you will lose x number of drives of capacity.  An example would be with RAID 5 you would lose one drive of capacity while in RAID 10 you would lose half of your capacity.  There are many other details to consider regarding capacity and cost, but this is the first step.

Performance

With the different types of drives come differences in performance.  Once of the main factors you have to consider is how many IOPS (Inputs/Output Operations per Second) your server or applications are going to require.  Once you know this, you can move forward to designing your array layout.

Not only do drives come in different types, they come in different speeds; SATA 7,200 rpm, SATA 10,000 rpm, SAS 10,000 rpm, SAS 15,000 rpm, etc.  With the different types and different speeds come different IOPS so we will jump a little more into this.

To calculate IOPS in a drive, you need to take into consideration average latency and average seek time using the formula:  1 / (Avg seek time in sec + Avg latency in sec).|

Availability

When talking availability we need to consider a number of things.  I won’t go into every single one of them but I will try to highlight some of the important considerations.

The first would be how your selected drives will hold up in a RAID scenario.  SAS drives are typically designed for running more hours and larger workloads.  They also tend to include the more advanced technologies such as command queuing, reordering, lower bad sector recovery times, etc.  There are more examples, but this is the basic idea.

The next thing to consider is how your array will sustain a single drive or multiple drive loss.  Let’s take RAID 5 for example.  RAID 5 can sustain a single drive loss without data loss but a loss of two drives will result in total failure; no matter the number of drive it consists of.  In addition, the more drives you add to it, the higher chance you have to run into a total loss scenario.  RAID 10 can sustain multiple drive losses. The number of possible drive loss in RAID 10 depends on the total number of drives in the array.  For example, a four drive RAID 10 can lose two drives while a six drive RAID 10 can lose 3.  Now please note, the numbers of drive losses must happen in a specific scenario.  Or in other words, you have to lose specific drives in specific parts of the array.

The last factor to consider is the rebuild times when you do have a drive failure.  The different levels of RAID all have different times for rebuild but the important thing to think about is exposure during rebuild. During the rebuild, you are not only in a degraded state as far as performance but you are also in a very vulnerable state.  What happens if you lose another drive during this time?  It could mean total failure, and if not, this means an even more degraded state with an even higher chance of total failure.  Taking that into account, it will make you think very hard to which RAID to choose.

In conclusion, it should be mentioned that there are many things to consider that haven’t been covered here. Choosing a RAID solution can be overwhelming, but Greystone is here to help. Ask your consultant to help explain the process, or let us know whenever you have questions! Even email me if you have any questions, comments or even complaints:  tsniff@greystonetech.com.

 

Greystone Named Finalist for “Small Business of the Year” Award!

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We are pleased as can be to announce that we are one of 3 finalists for the “Small Business of the Year” award from the South Metro Denver Chamber of Commerce and the Colorado Small Business Development Center.

In its 28th year, this award focuses on companies with 5 to 250 employees (or equivalent FTEs), that have been in business five years or more.  As a finalist, we join in a long list of outstanding Colorado companies, including: Floyd’s 99 Barber Shops, Ouray Sportswear and Tony’s Meats and Specialty Foods.

The Small Biz of the Year Nominating Committee!

Part of the selection process included hosting the Nominating Committee for a site visit last week.  We had an amazing time showing them around our space and sharing our passion and vision for managing technology and web presence for our clients so their businesses can thrive!

We look forward to celebrating business in the metro area by attending the awards ceremony at Comedy Works – South next Wednesday, May 1.  There will also be awards for Emerging Business of the Year and Community Leader of the Year!  For more information on the awards ceremony, please check the South Metro Denver Chamber Meetup page!

We’re incredibly grateful for this honor and opportunity!

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