EMC CX500I Configuration Guide - Page 16

Fibre Channel, SCSI and IP. - cx500 serial cable

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About CX300, CX500, CX500i, and CX700 Storage Systems Fibre Channel Fibre Channel is a high-performance serial protocol that allows transmission of both network and I/O channel data. It is a low level protocol, independent of data types, and supports such formats as SCSI and IP. The Fibre Channel standard supports several physical topologies, including switch fabric point-to-point and arbitrated loop (FC-AL). The Fibre Channel storage systems described in this manual use switch fabric and FC-AL topologies. A switch fabric is a set of point-to-point connections between nodes; each connection is made through one or more Fibre Channel switches. Each node may have its own unique address, but the path between nodes is governed by a switch. The nodes are connected by optical cable. A Fibre Channel arbitrated loop is a circuit consisting of nodes. Each node has a unique address, called a Fibre Channel arbitrated loop address. The nodes connect with optical cables. An optical cable can transmit data over great distances for connections that span entire enterprises and can support remote disaster recovery systems. Each connected device in a switched fabric or arbitrated loop is a server adapter (initiator) or a target (storage system). The switches are not considered nodes. Figure 1-2 shows a node and initiator. Server Adapter (Initiator) Node Adapter Connection Storage System (Target) Node Figure 1-2 Nodes - Initiator and Target EMC1802 1-4 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide

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1-4
EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide
About CX300, CX500, CX500i, and CX700 Storage Systems
Fibre Channel
Fibre Channel
is a high-performance serial protocol that allows
transmission of both network and I/O channel data. It is a low level
protocol, independent of data types, and supports such formats as
SCSI and IP.
The Fibre Channel standard supports several physical topologies,
including switch fabric point-to-point and arbitrated loop (FC-AL).
The Fibre Channel storage systems described in this manual use
switch fabric and FC-AL topologies.
A switch fabric is a set of point-to-point connections between nodes;
each connection is made through one or more Fibre Channel
switches. Each node may have its own unique address, but the path
between nodes is governed by a switch. The nodes are connected by
optical cable.
A Fibre Channel arbitrated loop is a circuit consisting of nodes. Each
node has a unique address, called a Fibre Channel arbitrated loop
address. The nodes connect with optical cables. An optical cable can
transmit data over great distances for connections that span entire
enterprises and can support remote disaster recovery systems.
Each connected device in a switched fabric or arbitrated loop is a
server adapter (initiator) or a target (storage system). The switches
are not considered nodes.
Figure 1-2 shows a node and initiator.
Figure 1-2
Nodes - Initiator and Target
EMC1802
Server Adapter (Initiator)
Connection
Storage System (Target)
Node
Adapter
Node