Cisco Systems SN 5428-2 manual Available Instances of SCSI Routing

Chapter 1 Before Configuring SN 5428-2 Storage Router Software

SCSI Routing Overview

Figure 1-8 SCSI Routing Storage Mapping and Access Control Concept

IP host A	Cisco SN 5428-2	Storage
	with IP addresses	accessible by
IP host B	10.1.2.3 and 10.1.2.4	IP host C
	IP	Controller 4

1 2 3

Controller 1

IP host C
1	2	3	1	2	3
Storage					Controller 3
					Storage
accessible by		1	2 3
					accessible by
IP host A
		Controller 2			IP host B

85726

Table 1-3 SCSI Routing Storage Mapping and Access Control Concept

Hosts Allowed
Access via SN 5428-2	Storage Devices Apparent	Via GbE IP
Access List and/or	to Host as Locally	Addresses of SCSI	Mapped To	Mapped To
VID	Attached Devices	Routing Instances	Controller	Drive
Host A	Local Disk (D:)	10.1.2.3	1	1
	Local Disk (E:)	10.1.2.3	1	2
	Local Disk (F:)	10.1.2.3	1	3
	Local Disk (G:)	10.1.2.3	2	1
	Local Disk (H:)	10.1.2.3	2	2
	Local Disk (I:)	10.1.2.3	2	3
Host B	Local Disk (D:)	10.1.2.3	3	1
	Local Disk (E:)	10.1.2.3	3	2
Host C	Local Disk (D:)	10.1.2.4	4	1
	Local Disk (E:)	10.1.2.4	4	2
	Local Disk (F:)	10.1.2.4	4	3
	Local Disk (G:)	10.1.2.4	3	3

Available Instances of SCSI Routing

You can configure an SN 5428-2 Storage Router with up to 12 instances of SCSI routing services. Each instance needs to be configured with the following:

•One or more unique IP addresses assigned to either one or both Gigabit Ethernet interfaces

•Mapping between iSCSI target names and physical storage addresses

•Access control

When an SN 5428-2 is part of a cluster, an instance of SCSI routing can run on only one storage router in a cluster at any given time. See the “SN 5428-2 Cluster Management Overview” section on page 1-25for more information about storage router clusters.

Cisco SN 5428-2 Storage Router Software Configuration Guide

OL-4691-01 1-9