FS System: How to Remove and Replace an Energy Storage Module (ESM) in an FS1-2 Controller [VCAP](Doc ID 1984509.1)In this DocumentGoalSolutionReferencesAPPLIES TO:Oracle FS1-2 Flash Storage System - Version All Versions to All Versions [Release All Releases]Information in this document applies to any platform.GOALHow to Replace an Energy Storage Module (ESM) in an Oracle FS1-2 ControllerOTHow to Replace an Energy Storage Module (ESM) in an Oracle FS1-2 ControllerSOLUTIONDISPATCH INSTRUCTIONS- WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:Product knowledge, FS1-2 Flash Storage SystemTIME ESTIMATE: 45 minutesTASK COMPLEXITY: 1FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:PROBLEM OVERVIEW:What: An ESM in an FS1-2 Controller has failed and needs to be replaced. Where: There will be a System Alert that identifies the problem Controller. Since the Controller will not boot with a failed ESM, it is almostcertain that the System Alert will say that there is a Controller failure.Why: An FS1-2 Controller ESM has failed.NOTE: Please check all the ESM part numbers for part number 7080891. These need to be replaced as part of pro-active FCO 354. SeeDocument 2045728.1FCO A0354-1: Proactive: High failure rate of Energy Storage Modules (ESMs) in FS1-2 Storage System Controllersfor more details.WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?The Controller with the ESM failure will have a warning status. The other Controller must have a normal status as this procedure requires aController failover. The problem Controller must be powered off in order to replace the failed ESM.