A main storage dump is a collection of data from the i5/OS(R)'s main storage. It can be manually initiated when the system administrator suspects a system wait or loop, or automatically by the server firmware as the result of a system failure.
Learn how to use the HMC to perform an IBM i5/OS main storage dump.
Follow these steps to perform a main storage dump from an HMC:
Learn how to use the control panel to perform an IBM i5/OS main storage dump.
If you do not have an HMC, follow these steps to perform a platform system dump: