Quote Originally Posted by m.oreilly View Post
why do you think we are seeing 'scsi' even for single drives? the drivers will pass through an unmap command, but there isn't one from win7.
Win7 is not able to send the UNMAP command, but the Intel SCSI filter driver iaStorF.sys is able to change the Trim command to an Unmap command. That is the reason why Intel is now using 2 drivers simultaneously (iaStorF+iaStorA.sys), whereas the "normal" Intel MSM and RST drivers always had just 1 single driver named iaStor.sys.