EMC Connectrix B Series Hardware Reference Manual page 110

Glossary
Running Disparity
SAN Architecture
SAN Port Count
Scalability
g-30
EMC Connectrix B Series DS-8B3 and DS-16B3 Hardware Reference Manual
A binary parameter indicating the cumulative disparity (positive or
negative) of all previously issued transmission characters.
RW Read/write. Refers to access rights.
RX
Receiving frames.
RX_ID
Responder exchange identifier. A 2-byte field in the frame header that
can be used by the responder of the exchange to identify frames as
being part of a particular exchange.
S
S_ID Source ID. Refers to the native port address (24 bit address).
SAN Storage area network. A network of systems and storage devices that
communicate using Fibre Channel protocols. See also Fabric.
The overall design of a storage network solution, which includes one
or more related fabrics, each of which has a topology.
The number of ports available for connection by nodes in the entire
SAN.
One of the properties of a SAN: the size to which a SAN topology can
grow port and switch counts with ease.
SCN State change notification. Used for internal state change notifications,
not external changes. This is the switch logging that the port is online
or is an Fx_port, not what is sent from the switch to the Nx_Ports.
SCR State change registration. Extended Link Service (ELS) requests the
fabric controller to add the N_Port or NL_Port to the list of N_Ports
and NL_Ports registered to receive the Registered State Change
Notification (RSCN) Extended Link Service.
SCSI Small computer systems interface. A parallel bus architecture and
protocol for transmitting large data blocks to a distance of 15-25
meters.
SCSI-2 An updated version of the SCSI bus architecture.
SCSI-3 An SCSI standard that defines transmission of SCSI protocol data
over different kinds of links.