Database Database: It's Hard to Explain When you are enough time in the business, you learn the universal rule of IT: "Computers don't make mistakes, people do." It is especially true for database performance tuning.
Performance Creating a test file to test I/O performance For the purpose of testing the performance of a cloud storage volume, I recently came across the xfs_mkfile command. This command creates a file called 30GigFile.out that is 30 GB in size: xfs_mkfile 30720m 30GigFile.out What I do is simply
Database Flashback: The Lesson I Learned This piece is not about features or products. It's about lessons that we learn or not. The one I learned some twenty-three years ago was: "Don't ask for troubles and do one thing at a time."
Linux Checking Linux host performance (for the newbie) Every time I interview someone (for a non-Unix admin position) and ask them how they would check for performance on Linux, I'd like to say that the only
