Attachment overview of the iSCSI Gateway host

This section provides an attachment overview of the iSCSI Gateway host.

The iSCSI Gateway router provides access to storage unit fibre-channel storage over an Ethernet (LAN based) network. Host servers attached through Ethernet connections can attach to assigned LUNs in much the same way as fibre-channel attached servers by using host bus adapters. LUNs can shared or dedicated.

A single SN5420 provides a 100 Mbps connection to a storage area network. You can define up to four SCSI routers for the SN5420. You can have up to thirty-two hosts on each SCSI router. Each host can have up to eight storage targets. Each target can present multiple LUNS. For example, you can define eight LUNS for Windows^® 2000 or Windows 2003. You can define thirty-two LUNs for the UNIX^® operating system or the Linux operating system. A Windows iSCSI host can discover sixty-four storage devices or eight targets times eight LUNs. A UNIX or Linux host can discover 256 Storage devices or eight targets times thirty-two LUNs.

Note: When you configure the storage unit for host attachment, you can define the worldwide port name by host type. For example, you can define the SN5420 as a iSCSI Gateway host type. You can identify each host by an entry in the scsirouter list. You can present the storage unit LUNs to the SN5420, and you can use the scsirouter list to manage a host assignment.