The IBM i performance data collectors (PEX, Job Watcher, Disk Watcher and Collection Services) typically require certain PTFs before collecting data and in some cases analyzing data too.

Information about the PTFs needed for each release of IBM i are provided on these pages by select the desired IBM i version and release above.

Note: You can still install iDoctor without loading these PTFs, however before collecting data you should check if the required PTFs have been installed.