There are a couple of things that you can do. A lot depends on your server model. Some of the older models don't have an extensive OBP.
probe-scsi-all
test-all
banner(as was suggested)
VCS can't offline/online something that it cannot determine the status. You might want to post the output of format, vxprint, and hastatus commands. Any relevant messages from the messages file might...
royalliege - entries in fault manager have to be cleared out manually. They will remain until they are cleared. If you look at the output, you will see a date of when the error occurred. I don't...