IBM TotalStorage 3534-F08, Руководство по установке

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SNMP. See simple network management protocol.
SNMPv1. The original standard for SNMP, now labeled
v1.
SNS. See simple name server.
SOF. Start-of-frame.
SPC. SCSI-3 Primary Command.
storage area network. A network of systems and
storage devices that communicate using fibre-channel
protocols. See also fabric.
switch. Hardware that routes frames according to
fibre-channel protocol and is controlled by software.
switch name. The arbitrary name assigned to a
switch.
switch port. A port on a switch. Switch ports can be
E_ports, F_ports, or FL_ports.
SWL. See short wavelength.
Tachyon. A type of host bus adapter.
target. A storage device on a fibre-channel network.
See also initiator.
TCP. See transmission control protocol.
tenancy. The time from when a port wins arbitration in
a loop until the same port returns to the monitoring
state. Also referred to as loop tenancy.
topology. As applies to fibre channel, the configuration
of the fibre-channel network and the resulting
communication paths allowed. There are three possible
topologies:
v Point to point: A direct link between two
communication ports.
v
Switched fabric: Multiple N_ports linked to a switch
by F_ports.
v Arbitrated loop: Multiple NL_ports connected in a
loop.
throughput. The rate of data flow achieved within a
cable, link, or system. Usually measured in bits per
second (bps). See also bandwidth.
translative mode. A mode in which private devices
can communicate with public devices across the fabric.
transmission character. A 10-bit character encoded
according to the rules of the 8B/10B algorithm.
transmission control protocol (TCP). A
communications protocol used in the Internet and in any
network that follows the Internet Engineering Task Force
(IETF) standards for Internet protocol.
transmission word. A group of four transmission
characters.
trap (SNMP). The message sent by an SNMP agent to
inform the SNMP management station of a critical error.
See also simple network management protocol.
tunneling. A technique for enabling two networks to
treat a transport network as though it were a single
communication link or LAN.
Tx. Transmitted.
U. Unit of measure for rack-mounted equipment.
UART. Universal Asynchronous Receiver Transmitter.
UDP. See user datagram protocol.
ULP. See upper-level protocol.
ULP_TOV. See upper-level timeout value.
unicast. The transmission of data from a single source
to a single destination. See also broadcast, multicast.
universal port (U_port). A switch port that can
operate as a G_port, E_port, F_port, or FL_port. A port
is defined as a U_port when it is not connected or has
not yet assumed a specific function in the fabric.
U_port. See universal port.
upper-level protocol (ULP). The protocol that runs on
top of fibre channel. Typical upper-level protocols are
SCSI, IP, HIPPI, and IPI.
upper-level timeout value (ULP_TOV). The minimum
time that a SCSI ULP process waits for SCSI status
before initiating ULP recovery.
user datagram protocol. A protocol that runs on top
of IP and provides port multiplexing for upper-level
protocols.
VCCI. Voluntary Control Council for Interference
WAN. See wide area network.
WDM. Wave division multiplexing.
well-known address. As pertaining to fibre channel, a
logical address defined by the fibre channel standards
as assigned to a specific function, and stored on the
switch.
wide area network (WAN). A network that provides
communication services to a geographic area larger
than that served by a local area network or a
metropolitan network, and that may use or provide
public communications facilities. (T)
workstation. A computer used to access and manage
the fabric. May also be referred to as a management
station or host.
Glossary
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