The SCSI standard has been evolving over the years, and several standards exist. SCSI standards have evolved remarkably in terms of higher data transfer speeds. The user needs to compromise between having a higher number of SCSI devices connected to a bus and having fewer devices that may exist farther away. SCSI standards have also evolved in terms of defining more advanced commands, such as the Extended Copy command.
ATA/IDE standards, performance, and reliability have also evolved and are still evolving.
LUN masking in Windows NT may be accomplished in the HBA driver written by the HBA vendor.
Windows Server 2003 introduces a new Storport driver that augments the older SCSIPort driver. The newer Storport driver is meant for use ...