31 years of experience as a technical specialist for AS/400 + OS/400 in IBM Thailand from 1991 to IBM i + Db2 for i in IBM ASEAN Lab Services until January 2022. Supporting pre and post-sales, I specialize in Power Systems + IBM i performance concepts and tools, DB2 for i functions and performance concepts and tools, general IBM i system administration functions and features. Also know HW config and some firmware features of Power servers as applied to IBM i. Was co-author of many AS/400 redbooks. Published 5 IBM i articles here : https://www.itjungle.com/author/satid-singkorapoom/