Iscsi Authentication Setup Guidelines; Configuring Storage Name Services; Creating Isns Profiles And Tagging Profiles - Cisco DS-C9216I-K9 Configuration Manual

Configuring Storage Name Services

Figure 24-31
Figure 24-31
iSCSI
iqn.host-2
iSCSI
iqn.host-1
In Figure
iSCSI session from the iSCSI host to the virtual iSCSI target (on the IPS port) uses one of the two
physical interfaces (because an iSCSI session uses one TCP connection). When the Gigabit Ethernet
interface fails, the IPS module and the Ethernet switch transparently forwards all the frames on to the
second Gigabit Ethernet interface.

iSCSI Authentication Setup Guidelines

This section provides guidelines on iSCSI authentication possibilities, setup requirements, and sample
scenarios.
This section does not specify the steps to enter or exit EXEC mode, configuration mode, or any submode.
Be sure to verify the prompt before issuing any command.
Configuring Storage Name Services
Effective Release 1.3(1), the Internet Storage Name Service (iSNS) client feature is available in all
switches in the Cisco MDS 9000 Family with IPS modules installed.
iSNS services allow your existing TCP/IP networks to function more effectively as storage area networks
by automating the discover and management of iSCSI devices. To facilitate these functions, the iSNS
client functionality registers iSCSI portals and all targets accessible through a particular interface with
an external iSNS server.

Creating iSNS Profiles and Tagging Profiles

The iSNS client functionality on each interface (Gigabit Ethernet interface or subinterface or
PortChannel) registers information with its configured iSNS server using an iSNS profile. This process
is referred to as tagging an iSNS profile to an interface. Each iSNS profile keeps information about an
iSNS server IP address. One profile can be tagged to one or more interfaces.
Cisco MDS 9000 Fabric Manager Switch Configuration Guide
24-42
provides a sample Ethernet PortChannel-based high availability iSCSI configuration.
Ethernet PortChannel-Based iSCSI High Availability
HBA
IP
network
HBA
24-31, each iSCSI host discovers one iSCSI target for every physical Fibre Channel target. The
Ethernet PortChannel
IP-10.1.1.1
pWWN-P1
Chapter 24 Configuring IP Storage
FC fabric
FC
pWWN-P2
OL-7753-01