HP Brocade 4Gb SAN Switch for HP BladeSystem c-Class - Manual (Page 150)

150 Glossary
Fx_Port A fabric port that can operate as either an F_Port or FL_Port. See also FL_Port .
G_Port Generic port. A port that can operate as either an E_Port or an F_Port. A port is defined as a
G_Port when it is not yet connected or has not yet assumed a specific function in the fabric.
gateway Hardware that connects incompatible networks by providing translation for both hardware
and software. For example, an ATM gateway can be used to connect a Fibre Channel link to
an ATM connection.
GBIC Gigabit interface converter. A removable serial transceiver module that allows gigabaud
physical-level transport for Fibre Channel and gigabit Ethernet.
Gbps Gigabits per second (1,062,500,000 bits per second).
GBps Gigabytes per second (1,062,500,000 bytes per second).
HBA Host bus adapter. The interface card between a server or workstation bus and the Fibre
Channel network.
header A Fibre Channel frame has a header and a payload. The header contains control and
addressing information associated with the frame.
host A computer system that provides end users with services like computation and storage access.
IFL Interfabric link. A connection between a router and an edge fabric. Architecturally, these can
be of type EX_Port-to-E_Port or EX_Port-to-EX_Port.
initiator A server or workstation on a Fibre Channel network that initiates communications with storage
devices. See also target .
interswitch link See ISL .
IOD In-order delivery. A parameter that, when set, guarantees that frames are either delivered in
order or dropped.
IP Internet Protocol. The addressing part of TCP.
IQN iSCSI qualified name.
iSCSI Internet Small Computer Systems Interface. A protocol that defines the processes for the
transfer of block storage applications over TCP/IP networks by encapsulating SCSI commands
into TCP and transporting them over the network via IP.
iSCSI Gateway
Service
The HP StorageWorks multiprotocol SAN routing service that maps the FCP protocol to the IP
transport. This service projects iSCSI hosts onto the backbone fabric of a gateway switch.
ISL Interswitch link. A Fibre Channel link from the E_Port of one switch to the E_Port of another.
See also E_Port .
JBOD Just a bunch of disks. A number of disks connected in a single chassis to one or more
controllers. See also RAID .
L_Port Loop port. A node port (NL_Port) or fabric port (FL_Port) that has arbitrated-loop capabilities.
An L_Port can be in either Fabric Mode or Loop Mode.
LED Light-emitting diode. An indicator that shows the status of elements on a switch.
Loop Mode One of two possible modes for an L_Port, in which the L_Port is in an arbitrated loop, using
loop protocol. An L_Port in Loop Mode can also be in Participating Mode or Nonparticipating
Mode.
LSAN Logical storage area network. An LSAN enables device and storage connectivity that spans
two or more fabrics. The path between devices in an LSAN can be local to a fabric or cross
one or more MP Routers and one or more backbone fabrics.