Qlogic SANsurfer FC HBA Manager User Manual page 142

SANsurfer FC HBA Manager User's Guide
Management Tool for QLogic FC and FCoE Adapters
ioctl
Input/output (I/O) control. ioctl is a system
call found on Unix/Linux systems, allowing
an application to control or communicate
with a device driver outside the usual
read/write operations.
IP
Internet Protocol is a method by which
data is sent from one computer to another
over the Internet. IP specifies the format of
packets, also called datagrams, and the
addressing scheme.
iSCSI
Internet small computer systems interface.
ISP
Intelligent Storage Peripheral. QLogic
trademark and family of Fibre Channel and
iSCSI controller chips that replace network
interface chips in network adapters,
servers, and storage.
JBOD
"Just a bunch of disks."
JNLP
Java Network Launching Protocol is the
protocol, defined in an XML file format,
that specifies how Java Web Start applica-
tions are launched.
load balancing
A software feature that improves system
performance by balancing device access
between multiple QLA2xxx HBAs for
maximum resource efficiency. This feature
is available in Windows 2000/Windows
Server 2003/Windows Vista, Novell
NetWare, and Red Hat/SuSE Linux.
(Windows XP and Windows Server 2008
do not support load balancing.)
Glossary-4
loopback
A diagnostic tool where data is transmitted
and received by the QLA2xxx HBA.
logical unit number
See LUN.
LUN
Logical unit number. A LUN is the small
integer handle that identifies a portion of
disk storage. A LUN can consist of a single
physical disk or many physical disks. A
physical disk can be broken into multiple
LUNs.
LUN masking
A software feature that assigns LUNs to
specific servers or hides LUNs from
specific servers for maximum access and
availability control.
media
Carriers of information.
several different physical media: copper,
multimode optical, and single-mode
optical, which differ mainly in the maximum
cable length. All FC protocols are
supported on all media.
NIC
Network interface controller. A computer
circuit board or card that is installed in a
computer so that it can be connected to a
network.
nonvolatile random access memory
See NVRAM.
NVRAM
Nonvolatile random access memory.
configuration settings are stored in
NVRAM. You can configure HBA settings
or restore them from a file. These settings
are saved in NVRAM and are retained
when power is removed.
S
FC supports
HBA
SN0054651-00 B