Adaptec 412R User Guide - Page 94

DuraStor 412R/6320SS/7320SS Installation and User's Guide Symptom The system hangs at CT_srv starting. The system hangs during a drive scan. An active-active controller pair hangs during boot up drive scan (typically after displaying CT_Init on the RS-232 display). An active-active controller pair hangs the host system during normal operation or after failing over. An active-active controller pair always fails over after booting up. Solution Follow these steps: 1 Verify that there are no SCSI address conflicts. 2 Check the enclosures to make sure everything is properly connected. 3 If the enclosures and the disk drive work properly, replace the controller. Follow these steps: 1 Check the enclosures to make sure everything is properly connected. 2 Remove and replace the disk drive that failed the scan. 3 If the enclosures and the disk drive work properly, replace the controller. I Verify that all fibre channel/ SCSI channels are connected, cabled, and terminated properly. I Verify that the controllers are set to their default configuration (active-active single-port mode). Verify that all fibre channel/SCSI channels are connected, cabled, and terminated properly. I Verify that the controller that is failed/killed is set to its default configuration (active-active mode). I Verify the same SDRAM DIMM sizes are in both controllers. active-active controllers require the same SDRAM DIMM size. 6-10