> is it risky to implement the fallback mechanism in both directions? is > there a chance of forever retry? (fail 6, fail 10, fail 6, fail 10...) Just a heads-up that I am still working on a reasonable way to go about this. It is not entirely trivial to perform the transition from MODE SENSE(6) to (10) given how the SCSI disk driver works. -- Martin K. Petersen Oracle Linux Engineering