Lenovo ThinkServer RD540 - Manual (Page 119)

8200 Series Converged Network Adapter and 3200 Series Intelligent Ethernet Adapter Page 101
Glossary
adapter
The board that interfaces between the host
system and the target devices. Adapter is
synonymous with host bus adapter, host
channel adapter (HCA), host adapter, and
adapter board.
adapter port
A port on the adapter board.
adapter port beacon
An LED on the adapter. Flashing it enables you
to locate the adapter.
alias
A user-defined name for an adapter, adapter
port, logical disk, or subsystem.
Basic input output system (BIOS)
The program (or utility) that serves as an inter-
face between the hardware and the operating
system and allows booting from the adapter at
startup.
boot device
The device, usually a the hard disk, that
contains the operating system the BIOS uses to
boot from when the computer is started.
boot from SAN
The ability for each server on a network to boot
their operating system from a Fibre Channel
RAID unit located on the SAN, rather than from
a local disk or direct-attached storage (DAS).
This enables easier SAN management because
you can replace a server and boot it from the
Fibre Channel RAID unit.
challenge-handshake authentication protocol
(CHAP)
CHAP is used for remote logon, usually
between a client and server or a Web browser
and Web server. A challenge/response is a
security mechanism for verifying the identity of
a person or process without revealing a secret
password that is shared by the two entities. Also
referred to as a” three-way handshake.”
Converged Network Adapter
QLogic Converged Network Adapters support
both data networking (TCP/IP) and storage
networking (Fibre Channel) traffic on a single
I/O adapter using two new technologies:
Enhanced Ethernet and Fibre Channel over
Ethernet.
cyclic redundancy check (CRC)
A type of check value designed to catch most
transmission errors.
device
A computer subsystem, such an adapter card,
which mediates data in a computer network.
The term “device” is used interchangeably with
“target” and “target device.”
driver
The software that interfaces between the file
system and a physical data storage device or
network media.
dynamic host configuration protocol (DCHP)
Enables computers on an IP network to extract
their configuration from servers that have infor-
mation about the computer only after it is
requested.
Enhanced Ethernet
Also called data center Ethernet or converged
enhanced Ethernet. Refers to new enhance-
ments to the existing Ethernet standard that
eliminate Ethernet’s inherent lossy nature and
make 10Gb Ethernet a viable storage
networking transport.
Ethernet
The most widely used LAN technology that
transmits information between computers,
typically at speeds of 10 and 100 million bits per
second (Mbps).
failover path
Software feature that ensures data availability
and system reliability by assigning alternate
path and automatic adapter failover for device
resources.