HP ISCSI SR2122 - Manual (Page 5)

About this Document
5 iSCSI SR2122 Storage Router: Getting Started Guide
iSCSI Protocol
The SCSI transport protocol iSCSI maps block-oriented (CDB) storage data over TCP/IP
networks (through iSCSI PDUs). The iSCSI protocol enables universal access to storage
devices and storage-area networks (SANs) over standard Ethernet-based TCP/IP networks.
These networks may be dedicated networks or may be shared with traditional Ethernet
applications. IP LAN/WAN routers and switches can be used to extend the IP storage network
to the wide area of applications such as synchronous and asynchronous remote disk copy or
tape backup and restore.
Note: Although the iSCSI protocol is written as a complete data transport from host to storage this
chapter will only discuss the current HP supported topology of iSCSI hosts to Fibre Channel storage.
Assumptions
The reader should have a thorough understanding of HP’s Fibre Channel Storage networking
products including FC switches and storage as well as a basic understanding of TCP/IP
networking.