IBM RS6000 Service Guide - Page 271
FRU List, Problem, Backplane, Description, Action, Backplane assembly, Disk drive module, SSA
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Table A-1 (Page 4 of 9). Service Request Numbers SRN FRU List % 300C0 Backplane 100 301C0 Backplane assembly 100 303FF Disk drive module 100 40000 SSA adapter card 100 43PAA Disk drive module 90 SSA adapter card 10 Problem Description: A disk drive module has detected the loss of one of its power inputs. Action: If the failing device is an SSA Hot-Swap Disk Drive, exchange the backplane. If the failing device is not an SSA Hot-Swap Disk Drive, go to the service information for that device. Description: Multiple disk drive modules have detected the loss of one of their power inputs. Action: If the failing devices are SSA Hot-Swap Disk Drives, exchange the backplane. If the failing devices are not SSA Hot-Swap Disk Drives, go to the service information for those devices. Description: An SCSI status that is not valid has been received. Action: Go to "Software and Microcode Errors" on page A-5 before exchanging any FRUs. Description: The SSA adapter card has failed. Action: Exchange the FRU for a new FRU. Description: An SSA device on the link is preventing the completion of the link configuration. Action: If the SSA service aids are available, run the Link Verification service aid (see "Link Verification Service Aid" on page 3-73) to determine which device is preventing configuration. (That device is the one beyond the last-configured device on an open SSA link.) Appendix A. SSA Problem Determination Procedures A-9