IBM 86601RU Hardware Maintenance Manual - Page 296
Channel 1, ISPR = B2xx = Channel 2, If the IPSR
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288 Netfinity Server HMM IPSR Error 9xxx thru Bxxx(hex) (SCSI bus error caused by either defective drives, termination, etc.) FRU/Action 1. Note The Controller will detect a configuration change. Do not select Save Changes. Press F10 to bypass any save options. Isolate between the SCSI subsystem and the controller by disconnecting all SCSI cables and reboot. If the IPSR code still occurs, replace the planar. 2. If the IPSR code does not occur after disconnecting the cables, follow the steps below until the error is eliminated: a. Identify which channel is causing the error by the second digit of the original IPSR code: = Channel 1 ISPR = B2xx = Channel 2 ISPR = B3xx = Channel 1 and 2 b. Confirm that the channel(s) identified by the error code(s) is/are the cause of the error by verifying that the error presents itself when the offending channel is reconnected. c. Ensure that channel is properly terminated. d. Ensure that the backplane configuration jumpers settings are correct. e. Replace the failing cable. f. Replace the failing backplane. g. Disconnect one drive at a time that is attached to the failing channel, then; reboot to the system to determine which drive is causing the error.