Qlogic SANsurfer FC HBA Manager, Руководство пользователя, Страница: 139 / 152

SN0054651-00 B Glossary-1
Glossary
adapter
See HBA .
AL_PA
Arbitrated loop_physical address, a
low-level address on the
FC loop.
arbitrated loop
A non-point-to-point circular topology
where two or more
port s can be intercon-
nected, but only two ports can communi-
cate at one time. All communication is
passed through all ports connected onto
the loop.
BIOS
Basic input/output system. A QLA2 xxx
HBA 's flash PROM contains the code that
allows booting from the HBA at startup.
boot code
The first program to run when a system is
powered on. This is also true for devices
within a system, such as
FC HBA s.
FCode , BIOS , and EFI (enhanced
firmware interface) are all forms of boot
code for specific hardware/operating
system environments.
Boot code for QLogic FC HBAs is required
if the computer system is booting from a
storage device (boot device) attached to
the QLogic HBA. The primary function of
the boot code is communication with the
external boot device before the operating
system is up and running. There are also
secondary functions that can be performed
by the boot code, including managing the
setup for the HBA and initializing and
testing the HBA’s
ISP .
boot device
The hard disk that contains the operating
system that the
BIOS uses to boot from
when the computer is started.
CNA
Converged network adapters support both
data networking (TCP/IP) and storage
networking (FC) traffic on a single I/O
adapter using two new technologies:
Enhanced Ethernet and Fibre Channel
over Ethernet ( FCoE ).
CRC
Cyclic Redundancy Check. A CRC is a
type of check value designed to catch
most transmission errors.
CSV file
Comma separated values file.
device
A computer subsystem, such an HBA
card, which mediates data in a computer
network. The term “device” is used inter-
changeably with “target” and “target
device”. See
target .
driver
Software that interfaces between the file
system and a physical data storage device
or network media.