Introduction - Cisco SN 5428-2 Release Notes

Introduction

The Cisco SN 5428-2 Storage Router provides universal access to storage over IP networks. The storage
router software controls the operation of the Cisco SN 5428-2 Storage Router. You can configure the
software to provide the following types of access to storage over IP networks:
•
•
•
•
•
SCSI routing provides IP hosts with access to Fibre Channel (FC) storage devices, using iSCSI protocol.
The iSCSI protocol is an IETF-defined protocol for IP storage (ips).
For more information about the iSCSI protocol, refer to the IETF standards for IP storage at
Note
http://www.ietf.org.
With SCSI routing, storage device access is managed primarily in the SN 5428-2. (See
Figure 1
IP hosts
Transparent SCSI routing provides IP hosts with transparent access to intelligent storage arrays using
iSCSI protocol; that is, each IP host is presented as an FC host to an intelligent storage array. With
transparent SCSI routing, availability of storage devices is managed primarily in the intelligent storage
array. (See
Figure 2
IP hosts
Fibre Channel over IP (FCIP) enables SN 5428-2 Storage Routers to provide connectivity by tunneling
through an IP network between storage area networks (SANs). (See
Release Notes for Cisco SN 5428-2 Storage Router, Release 3.5.1
2
SCSI routing only
Transparent SCSI routing only
FCIP only
SCSI routing and FCIP
Transparent SCSI routing and FCIP
SCSI Routing
Cisco SN 5428-2
IP
Storage access is managed
in the SN 5428-2.
Figure 2.)
Transparent SCSI Routing
Cisco SN 5428-2
IP
The SN 5428-2
presents each IP host
as an FC host to the
storage array.
FC storage devices
Intelligent storage
array
FC
Storage access is
managed in the
storage array.
Figure
Figure 3.)
OL-5241-02
1.)