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Trevor Perry

Trevor
Perry

Trevor Perry is a popular speaker and consultant on modernization and IT strategy, including BI, around the globe—and occasionally at home in New York. His sessions on a united approach to IT and business strategies challenge traditional methods and lead companies as they move their IT organizations into the future. Outside of his IT role, Trevor forges new trails with his inspiring motivational sessions, and he is the author of the book Never Iron When You Are Naked, which contains, as he puts it, "the best motivational stories you can read one page at a time."

Articles
Modernization for IBM i: Database
Modernization for Your IBM i Business, Part 4: The Database 
IBM’s improvements and enhancements to IBM i and DB2 for i support modern application development techniques and improve application performance. Trevor Perry presents the compelling reasons to modernize your database in Part 4 of his IBM i modernization series.
IBM i Modernization: Refacing Apps
Modernization for Your IBM i Business, Part 3: Refacing Applications 
In part 3 of his modernization series, Trevor Perry argues that refacing applications should be a first step in your modernization strategy. If done well, refacing results in an architecture that provides agility for the next technological evolution.
Modernization for Your IBM i Business, Part 2: Security
Modernization for Your IBM i Business, Part 2: Security 
In part 2 of his series on modernization for IBM i, Trevor Perry dives into an important topic: security. Modernization will expose your company to more devices, more users, and more security attacks, and it's crucial to be prepared.
Develop a modernization strategy
Modernization for Your IBM i Business, Part 1 
A successful modernization effort begins with a well-thought-out strategy. But to devise a strategy, what questions should you ask, and which areas of your organization must you understand? This series will give you the information you need to ask the right questions and better understand your modernization choices.
Sorting Through Application Vendor Noise 
In the app mod world, the amount of marketing-speak IT professionals hear on a day-to-day basis is daunting. Trevor Perry provides strategies for sifting through the many types of noise to find a vendor who truly cares with a solution that can truly help your business.
BI in the Cloud 
Businesses today demand more results with fewer resources. If you don't have a BI solution yet, your path forward may require looking up into the clouds.
Restrategizing IBM i in the Age of the iPad 
It’s an iPad world, and we all just live in it. Resistance to the trendy device may not only be futile, but also pointless. With the right attitude and an eye toward establishing security safeguards and retooling processes, businesses that run on i can make the iPad work for them–and you can expect the demand for support and new apps to skyrocket, too.
Tuning Out of the Box: The Silver Bullet 
Having read the previous articles in this series, and because you understand the basics of work management, you have now reconfigured the work management parameters on your IBM i server. It is now processing in a more balanced manner with increased throughput, your company is experiencing a high level of support from IT, and you are now the company hero! No? If all of your efforts have produced some results, but not quite to the degree you had planned, you need a silver bullet. Faster! Faster! We all know the common performance myth that increasing the timeslice for a job will let it run 'faster'. Could this be the silver bullet? In the V5R4 CL manual when defining the CLS parameter (http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/rbam6/rbam6clexpand.htm), IBM tells us that the timeslice is "The maximum amount of processor time that the system allows the job to run when it is allowed to begin." The resource in this case is the processor, and the time slice is simply the amount of time the processor works for a job. So, a timeslice is not a resource, but an indication of how to use a resource. Increasing the timeslice, therefore, does not apply more resource. Continuing, the manual says “The time slice indicates the amount of time needed for the job to accomplish a meaningful amount of work...." The definition of a ‘meaningful’ amount of work differs from one performance expert to another. For interactive jobs, meaningful is best described as the time between the user pressing Enter and the response being returned to them. If your interactive job is written well, this amount of work is efficient and should not require a large amount of processing work. Hence, jobs with interactive attributes tend to have smaller timeslices. For batch jobs, a meaningful amount of work is best described as performing one transaction—that could be all of the updates related to a particular order, for example. Since batch jobs are intended to be long
Work Management Configurations 
The workload requirements on your server are rather unique, and your work management configuration needs to be unique as well. Discover how to maintain a balanced workload to keep your server performing at its best.
Subsystems and Memory Pools 
To efficiently use your server, you’ll need to consider running similar types of jobs together in subsystems and allocating enough memory to each job. Here’s how.
System Values Tuning 
Correctly setting key system values ensures that your System i spends more time managing work and less time managing itself. Part two of the Out of the Box Tuning series shows you how to identify and correctly set these key system values.
Out of the Box Tuning: Performance Tuning Basics 
You wouldn't change the oil in your car while you are driving it, so why tune your System i on the fly? Before you try to improve your System i's performance, map out goals and develop a plan. Part one of this series outlines performance-tuning basics.
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