Awesome thread and discussion about LSI controllers and glad that I came across it. We have Cisco UCS Rack servers using MRAID12G ( LSI 3108 based ) controller. We have been dealing with controller crashes / faults not often but they had had happened quite a few times. ECC erros , firmware going into FAULT state and server reboot would fix the trouble unless the controller is unresponsive for some reason.
Another topic I would like to know about is the controller performance monitoring... R/W , IOPS etc... Does anyone use any monitoring tool or have some other means of monitoring the controller performance?