New Year, Fewer Predictions

After a couple of weeks of vacation, some minor oral surgery, a birthday, and my five year anniversary at F5 Networks (has it really been that long?), I’m back to annoy or please you some more. Our holidays were acceptable, and here’s hoping all of you had an enjoyable time also. One thing I noticed is either that I was out of touch over vacation, or there were far fewer “tech predictions for 2012” type articles than has been the case in the past. I think that’s a good thing. Let’s just deal with things as they come, shall...

Remember When Hand Carts Were State Of The Art? Me either.

Funny thing about the advancement of technology, in most of the modern world we enshrine it, spend massive amounts of money to find “the next big thing”, and act as if change is not only inevitable, but rapid. The truth is that change is inevitable, but not necessarily rapid, and sometimes, it’s about necessity. Sometimes it is about productivity. Sometimes, it just plain isn’t about either. Handcarts are still used for serious purposes in parts of the world, by people who are happy to have them, and think a motorized vehicle would be a waste of resources. Think...

The Past Is History, The Future A Chance To Do It Right.

There are many things in the history of high technology that are downright conundrums. One of the obvious ones is: given the formats and media currently used to distribute text, music, and video, for example, how do we protect the rights of both legal users and the creators of content? Of course we want people to be able to make a living of creating content, which does imply it is not given away at the whim of anyone with a copy, but we also (at least in most modern countries) want to protect the rights of people who have...

Even the best written code has a weakness.

Developers are a great lot of folks, people who spend their day trying to do the impossible with bits for a customer base that is, by and large, impossible to satisfy. When the bits all line up correctly, the last line of code has been checked in, and the nightly compile accepted for deployment, then they get to sit back, relax for five minutes, and start over again. If this makes you think it’s not a great life, then you should live it. Developing gives instant feedback. No matter how unhappy users can be, fixing that nagging bug you’ve...

Automation Is Not Your Enemy.

Sun Tzu wrote that you cannot win if you do not know your enemy and yourself. In his sense, he was talking about knowing your army and its capabilities, but this rule seriously applies to nearly every endeavor, and certainly every competitive endeavor. Knowing your own strengths and weaknesses - In our case the strengths and weaknesses of IT staff and architecture – is imperative if you are to meet the challenges that your IT department faces every day. It is not enough to know that you must do X, you must know how X fits (or doesn’t!) into...

When The Walls Come Tumbling Down.

When horrid disasters strike and both people and corporations are put on notice that they suddenly have a lot more important things to do, will you be ready? It is a testament to man’s optimism that with very few exceptions we really don’t, not at the personal level, not at the corporate level. I’ve worked a lot of places, and none of them had a complete, ready to rock DR plan. The insurance company I worked at was the closest – they had an entire duplicate datacenter sitting dark in a location very remote from HQ, awaiting need. Every few...

Forget Performance IN the Cloud, What About Performance TO the Cloud?

In an N-Tiered architecture, the network connection between tiers becomes a truly important part of the overall application performance equation. This is a fact we have known for a couple of decades now. If your network performance is down for some reason (from mis-wiring to hardware mis-configuration to over utilization), your application performance will, by definition, suffer. I ran a test once while writing for Network Computing where the last person to use the lab had programmed the ports I was using to shunt bandwidth over threshold X onto a different VLAN. It took weeks and the help of one...

From Fort to Trade Network. IT Exposure Issues.

  In most fantasy RPGs and in historical context, a fort is a well built defensive position that allows you to detect attacks and funnel them to places where they can be defeated. It's well constructed, has restricted points of entry, and has defense in depth. A trade network on the other hand is a lengthy line of trails and/or roads with little protection and lots of wide open spaces that allow enemies to attack at a point of their choosing. IT is in a state of transformation that these two definitions fit rather well. It started...

Toll Booths and Dams. And Strategic Points of Control

An interesting thing about toll booths, they provide a point at which all sorts of things can happen. When you are stopped to pay a toll, it smooths the flow of traffic by letting a finite number of vehicles through per minute, reducing congestion by naturally spacing things out. Dams are much the same, holding water back on a river and letting it flow through at a rate determined by the operators of the dam. The really interesting bit is the other things that these two points introduce. When necessary, toll booths have been used to find and...

You Say Tomato, I Say Network Service Bus

It’s interesting to watch the evolution of IT over time. I have repeatedly been told “you people, we were doing that with X, back before you had a name for it!” And likely, the speaker is telling the truth, as far as it goes. Seriously, while the mechanisms may be different, putting a ton of commodity servers behind a load balancer and tweaking for performance looks an awful lot like having LPARs that can shrink and grow. You put “dynamic cloud” into the conversation and the similarities become more pronounced. The biggest difference is how much you’re paying for...