IBM 72335LU - System x3850 M2 Installation Manual

Also see for 72335LU - System x3850 M2: User guide

Contents

v Follow the suggested actions in the order in which they are listed in the Action column until the problemis solved.v See the parts listing in the Problem Determination and Service Guide to determine which components arecustomer replaceable units (CRU) and which components are field replaceable units (FRU).v If an action step is preceded by “(Trained service technician only),” that step must be performed only by atrained service technician.Lit light pathdiagnostics LED withthe system-error LEDalso lit Description ActionDASD A hard disk drive has failed or hasbeen removed.Note: The error LED on the failinghard disk drive is also lit.1. Reinstall the removed drive.2. Reseat the following components:a. Failing hard disk driveb. SAS hard disk drive backplanec. SAS signal cabled. I/O board shuttle assembly3. Replace the components listed in step 2 one at atime, in the order shown, restarting the server eachtime.RAID The RAID controller has indicated afault. 1. Check the BMC log or the system-error log forinformation.2. Reseat the following components:a. RAID controller, if possibleb. Hard disk drivesc. I/O board shuttle assembly3. Replace the components in step 2 one at a time,in the order shown, restarting the server each time.BOARD The microprocessor board or I/Oboard has failed. 1. Find the failing board by checking the LEDs on themicroprocessor board and I/O board.2. Reseat the failing board.3. Replace the failing board.64 IBM System x3850 M2 and System x3950 M2 Type 7141: Installation Guide