IBM Announces New Mainframes

IBM today announced their latest model mainframe, the IBM z13.

Everybody knows -- or should know -- that the mainframe is the work horse of the IT industry, but the new z13 boasts some amazing capabilities. The z13 can process 2.5 billion transactions a day. And those transactions are persistent, protected and auditable end-to-end!  Furthermore, the z13 delivers practical real-time encryption based on 500 new patents, including advanced cryptographic encryption technologies. And the z13 comes with embedded analytics capabilities.

“Every time a consumer makes a purchase or hits refresh on a smart phone, it can create a cascade of events on the back end of the computing environment. The z13 is designed to handle billions of transactions for the mobile economy.  Only the IBM mainframe can put the power of the world's most secure data centers in the palm of your hand," said Tom Rosamilia, senior vice president, IBM Systems.

To put this amount of power into context, IBM notes that a single z13 mainframe can porcess more than 30,000 transactions per second, which is roughly the same as 100 Cyber Mondays every day!

IBM has designed the z13 to integrate real-time scoring and guarantees this capability as a feature of the system. This scoring can be used for fraud detection on 100 percent of a client's business transactions. To take advantage of this capability customers must be running the latest versions of DB2 and SPSS Scoring Adapter on z13 machine, as well as following IBM's capacity planning implementation instructions and processes.

For the long-time mainframe zealots out there, of which I am one, it always gives me a warm feeling inside when IBM comes out with a new line of mainframes. The mainframe always leads the IT industry in terms of processing power and capabilities... and it looks like it will continue to do so well into the future...

New Skills Required of Internet DBAs

When DBAs transition from supporting internal applications only, to Internet-exposed applications, there are a lot of additional skills required to ensure success. Some of these skills are obvious, like the need to understand the protocols of the Internet including HTTP and FTP and how data is transferred across the Internet. Others, are more business-focused, such as the impact of clients accessing your data over the Web from anywhere at any time. Still others are bit more esoteric, like knowledge of the basic tools used for web development including CGI, SSL (Secure Sockets Layer), and how URLs are structured. You should also bone up on Web-development methods and technologies like JSON (JavaScript Object Notation), XML, and the like. 

If Java is used, the DBA must develop a working knowledge of the language and how databases are accessed using SQL with Java. This is needed for design, development, and tuning of Java-based web-enabled database applications.

There are several additional skills that will make you a better Internet-using-DBA that should top the list of things to learn before your try to support Web-enabled database applications as a DBA. Compliance and security should top that list. Learn about SQL injection attacks and how to prevent them. Learn about protecting your data using all of the capabilities of your DBMS including trusted context, data masking, row permissions, views, and label-based access control. Learn about the encryption capabilities of your DBMS, O/S and hardware -- and what encrypting data might mean regarding efficient data access. Also, knowledge of Internet security technologies like SSL, firewalls, and network/OS security will prove to be useful.

You must also obtain knowledge on the connections from DB2 to the Internet.  This requires knowing how connections are configured and how TCP/IP is setup, configured, and administered.

Another good idea is to gain a working knowledge of the operating system for the server on which your Web server is running. This facilitates easier monitoring and tuning for performance  problems. If you are a z/OS DB2 DBA, this will likely require you to get out of your comfort zone and dig into Linux or some variant of Unix.

It can also be worthwhile to develop a better understanding of highly available RAID storage technologies in use for most 24x7 Internet applications.

Of course, having a clear understanding of the business functionality that is being achieved via the web-enabled databases in your organization is also vitally important. Only by understanding the business impact of database downtime can the appropriate administrative techniques be deployed to maintain constant availability.

I don't imagine that this is a 100 percent complete list of thing-you-need-to-know, but it is probably a good place to start your learning adventure. Let me know what I might have missed by adding your comments below! 

And if you already support Internet access to your databases and you don't feel up-to-date on these items, then it is definitely time to get cracking!

Season's Greetings

Seasons Greetings

And a hearty "Hello!" to everybody out there... just a short post today to wish everybody a very happy holiday season.

This is the time of year when work starts winding down somewhat and people start to spend time with their families. Whether it is Christmas, Hannukah, Kwanza, or just celebrating the end of one year and the beginning of another, may you spend it peacefully, happily and among those you love.

This will be the final post of the year for this blog, but be sure to join me again next year - 2015 - as we continue to examine all aspects of everybody's favorite DBMS... IBM's DB2...

The Wizard of Userville and the DB2 Developer's Guide

Once upon a time there was a kingdom called Userville. The people in the kingdom were impatient and wanted to know everything about everything—they could never get enough information. Life was difficult and the people were unhappy because data was often lost, and even when it was available, it was often inaccurate and not easy to access.

The King decided to purchase DB2, an advanced tool for storing and retrieving data. With DB2 the Users could process their data and turn it into information. “This,” he thought, “should keep the people happy. DB2 will solve all my problems.” But he soon found out that special knowledge was necessary to make DB2 work its wonders. Nobody in Userville knew how to use it properly.

Luckily, a grand Wizard living in a nearby kingdom knew many mystical secrets for retrieving data. These secrets were a form of magic called SQL. The King of Userville summoned the Wizard, offering him many great treasures if only he would help the poor Users in Userville.

The Wizard soon arrived, determined to please. Armed with nothing more than SQL and a smile, the Wizard strode to the terminal and uttered the magic words:

    SELECT E.EMPNO, E.FIRSTNME, E.LASTNAME, D.DEPTNO, D.DEPTNAME

    FROM   DSN81010.DEPT  D,

           DSN81010.EMP   E

    WHERE  E.WORKDEPT = D.DEPTNO;

A crowd gathered and applauded as the desired information began pumping out of the terminal. “More, more,” shouted the data-starved masses. The Wizard gazed into the screen, and with amazing speed effortlessly produced report after report. The King was overheard to say, “You know, this is just too good to be true!” Everybody was happy. The Users had their share of information, the King had a peaceful kingdom, and the Wizard had his treasures and the respect of the Users.

For many months, the Users were satisfied with the magic of the great Wizard. Then, one day, the Wizard disappeared…in a jet to the West Coast for 150 grand a year—and a bunch of stock options. The people of the kingdom began to worry. “How will we survive without the magic of the Wizard? Will we have to live, once again, without our precious information?” The Wizard’s apprentice tried to silence the crowd by using his magic, but it wasn’t the same. The information was still there, but it wasn’t coming fast enough or as effortlessly. The apprentice was not yet as skilled as the great Wizard who had abandoned the kingdom. But, as luck would have it, one day he stumbled upon the great Wizard’s diary. He quickly absorbed every page and soon was invoking the Wizard’s magic words. And all was well again.

Well, life is not always that simple. Departing Wizards do not often leave behind documentation of their secrets. But...

DB2 Developer's Guide

Many of you who have purchased my book, DB2 Developer's Guide, will recognize the story recounted above because it starts the book off in Chapter 1. The idea being that the rest of the book is the Wizard's guide to DB2 for z/OS... 

If you use DB2 for z/OS for a living and you have never read DB2 Developer's Guide, maybe it is time to treat yourself to an early present for the holidays? The book comprises more than 1500 pages of in-depth DB2 knowledge and information. Over the course of 46 chapters DB2 Developer's Guide covers:

• SQL Techniques, Tips, and Tricks
• DB2 Application Development
• DB2 In-Depth (an under the covers look)
• DB2 Perfromance Monitoring
• DB2 Utilities and Commands
• DB2 Tools and Organizational Issues
• Distributed DB2
• and much, much more

The book has been in print for more than 20 years now and has been published in 6 different editions over that span. The current edition is the 6th edition published by IBM Press.

So continue and take the next step toward becoming a DB2 Wizard by getting your own copy today!

An Extra DBA Rule of Thumb

Last year on the blog I posted a series of 12 DBA Rules of Thumb. As a quick reminder, these Rules of Thumb - or ROTS, are some general rules of the road that apply to the management discipline of Database Administration that I have collected over the years. These ROTs are broadly applicable to all DBAs, even though this is a DB2-focused blog.

Please click on the link in the paragraph above if you need a refresher on the DBA ROTs from last year.

The purpose of today's blog post is to suggest an additional Rule of Thumb... and that is to Diversify!  A good DBA is a Jack-of-All-Trades. 

You can’t just master one thing and be successful in this day-and-age. The DBA maintains production, QA and test environments, monitors application development projects, attends strategy and design meetings, selects and evaluates new products, and connects legacy systems to the Web.

And if all of that is not enough, to add to the chaos, DBAs are expected to know everything about everything. From technical and business jargon to the latest management and technology fads and trends, the DBA is expected to be “in the know.” For example, the DBA must be up on trends like Big Data and Analytics.

And do not expect any private time: A DBA must be prepared for interruptions at any time to answer any type of question… and not just about databases, either.

When application problems occur, the database environment is frequently the first thing blamed. The database is “guilty until proven innocent.” And the DBA is expected to be there to fix things. That means the DBA is often forced to prove that the database is not the source of the problem. The DBA must know enough about all aspects of IT to track down errors and exonerate the DBMS and database structures he has designed. So he must be an expert in database technology, but also have semi-expert knowledge of the IT components with which the DBMS interacts: application programming languages, operating systems, network protocols and products, transaction processors, every type of computer hardware imaginable, and more. The need to understand such diverse elements makes the DBA a very valuable resource. It also makes the job interesting and challenging.

To summarize, the DBA must be a Jack-of-all-Trades... and a master of several!!!