User`s guide

IS0054602-00 A B-1
Appendix B
Glossary
This section describes common hardware, software, and iSCSI terms that are used
in the SANsurfer iSCSI HBA Manager application.
Adapter See HBA.
BIOS A QLA4xxx HBA’s flash PROM contains the code that
allows booting from the HBA at startup.
Boot device The boot device is the hard disk that contains the
operating system the BIOS uses to boot from when the
computer is started.
Driver Driver refers to software that interfaces between the file
system and a physical data storage device or network
media.
The level structure for Windows 2000/Windows Server
2003 drivers is as follows:
■ Class Driver. This is the highest driver level. There
is a separate class for disk, Ethernet, etc. This level
handles all generic aspects of operations for that
class.
■ Port Driver. This is the middle driver level, which
handles aspects of the operation specific to the port
type; for example, there is a port driver for SCSI.
■ Miniport Driver. This is the lowest driver level and
device specific. This level is usually supplied by the
manufacturer as a companion to a physical device.
■ Monolithic Driver. This level combines the functions
of different driver levels in the same driver to
increase performance.
■ Adjunct Driver. This level works along side a driver
at the same level to increase performance.