In a previous series of articles in IT Jungle, I introduced you to the enablement of the PHP language, via Zend Core, on i5/OS and the capabilities that PHP provides for the development and deployment of Web applications integrated with i5/OS objects and DB2 data. (See Related Stories below.) The customer interest in PHP has been high and I receive numerous questions at customer events on its usage of PHP on IBM i. Many people also ask about Zend Framework. What is Zend Framework? Can I use it on i5/OS? How can I integrate the advanced functionality that Zend Framework

I have found a great tool for working with timestamp data. I have used it for performance tracking and analyzing data intervals. It’s SQL’s Timestampdiff function, and I think you should tell readers of Four Hundred Guru about it.

Timestampdiff returns the difference between two timestamps in the interval of your choice. The first parameter for the timestampdiff function is the interval to use. Valid values for this parameter are:

In recent articles, I discussed some techniques for preventing your subsystems from restarting after a full system backup; turning off your iSeries, System i, and Power i attention lights; and preparing to add disk drives to your system. After publishing these tips, several readers wrote in with corrections, additions, and stories that flesh out the techniques even further. This week, let’s look at what you had to say and see what additional information we can pick up from them.

More On Stopping Your System i From Starting Up

After printing a tip on stopping your controlling subsystem from restarting after