Supervised and Monitoring the AS/400 Data Center Operators' activity, Tasks and Email reports compliance at Night Shift. On Call and On Standby Support at 24/7 schedule. Supervises and Maintains an up-to-date technical knowledge and standard understanding of practical computer operations and systems; for the Data Center Operators' Daily/Weekly Tasks and Job alignment. To plot for an additional and improvement tasks to the AS/400 DC Operator. Monitor the Weekly Data Integrity assessment, process validations and recommendations for the Four JDA Production Systems' Daily Backups. Daily Backup at JDAPROD5 is taking too long to process since Thursday, 08 Dec. 2021 dated backup. Issue were still being investigated by IBM Support SW & HW side. The workaround of replacing the Tape drive (TAP01) to another spare Tape drive (TAP04) are being done successfully. The another message/issue after it was replaced by a new Tape drive, which is an Interface error, were checked and found out by the IBM Support, the need to replace the defective Fiber Cables and SFP on SAN switch, connecting New Tape drive and Tape Library.