Brocade SAN Glossary for Fabric OS v6.0.0

Brocade SAN Glossary 1/29/2008 Page 24 of 29
SAN Storage Area Network. A network linking computing devices to disk or tape
arrays and other devices over Fibre Channel.
SAN architecture The overall design of a storage network solution, which includes one or more
related fabrics, each of which has a topology.
SAN port count The number of ports available for connection by nodes in the entire SAN.
Scalability One of the properties of a SAN; the size to which the SAN topology can grow
port and switch counts with ease.
SAS Brocade Storage Application Services.
SCC SC Connector. A fiber-optic cable connector that uses a push-pull latching
mechanism similar to common audio and video cables.
SCN State Change Notification. Used for internal, not external, changes.
SCR State Change Registration. The command used by devices to register to
receive RSCNs.
SCSI Small Computer Systems Interface. Parallel bus architecture and a protocol
for transmitting large data blocks to a distance of 15 to 25 m.
SCSI-2 An updated version of the SCSI bus architecture.
SCSI-3 A SCSI standard that defines transmission of SCSI protocol data over
different kinds of links.
SDRAM The main memory for the switch.
Sectelnet A protocol similar to telnet, but with encrypted passwords for increased
accuracy.
Secure Fabric OS An optionally licensed Brocade feature that provides centralized security
tools for a fabric; some Secure Fabric OS features migrated to base Fabric
OS starting with Fabric OS 5.2.0 and continued in Fabric OS 5.3.0.
Security policy Rules that determine how security is implemented in a fabric.
SEQ_ID Sequence Identifier; a 1-byte field in the frame header change to identify the
frames as being part of a particular Exchange Sequence between a pair of
ports.
Sequence A group of related frames transmitted uni-directionally from one N_Port to
another.
Sequence initiator The N_Port that begins a new sequence and transmits frames to another
N_Port.
Sequence recipient The N_Port to which a particular sequence of data frames is directed.
SERDES SERializing/DESerializing circuitry. A circuit that converts a serial bit stream
into parallel characters, and vice-versa.
Serial The transmission of data bits in sequential order over a single line.
Server A computer that processes end-user applications or requests.
SES SCSI Enclosure Services. A subset of the SCSI protocol used to monitor
temperature, power, and fan status for enclosed devices.