I have been working with the IBM i platform for 35+ years, initially at IBM Rochester for 9 years, working  on DB2 and the Storage Management.  Then onto ShowCase Corp. working on Essbase OLAP engine for IBM i.  Currently I with Precisely, (formerly Syncsort, Vision Solutions, and Lakeview Technology) working on  IBM i Assure solutions:   Assure MIMIX, Assure Security, and Ironstream

IBM i: DB2, journaling,