I have today  just passed my IBM 000-206 High-End Disk Solutions for Open Systems Version 1. I thought I will post out my tips for what to study to help others pass the exam as well.

1- Make sure you know when to use DS8000, DS6000, DS4000, Nseries & SVC. There are so many scenario questions that will require you to be able to distinguish between the usage of each of the above storage types.

2- Make sure you are aware of the different versions of IBM TotalStorage Productivity Center, when to use which version, & what its used for.