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Cisco SN 5428-2 Storage Router Software Configuration Guide
OL-4691-01
Chapter 1 Before Configuring SN 5428-2 Storage Router Software
SCSI Routing Overview
Figure 1-8 SCSI Routing Storage Mapping and Access Control Concept
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 1-25
for more information about storage router clusters.
Table 1-3 SCSI Routing Storage Mapping and Access Control Concept
Hosts Allowed
Access via SN 5428-2
Access List and/or
VID
Storage Devices Apparent
to Host as Locally
Attached Devices
Via GbE IP
Addresses of SCSI
Routing Instances
Mapped To
Controller
Mapped To
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
IP host A
IP host C
IP host B
IP
Cisco SN 5428-2
with IP addresses
10.1.2.3 and 10.1.2.4
85726
123
123
123
123
Controller 1
Controller 2
Controller 3
Controller 4
Storage
accessible by
IP host A
Storage
accessible by
IP host B
Storage
accessible by
IP host C