Iscsi Authentication Setup Guidelines And Scenarios - Cisco MDS 9000 series Configuration Manual

iSCSI Authentication Setup Guidelines and Scenarios

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Figure 4-20
iqn.host-2
iqn.host-1
In Figure
iSCSI session from the iSCSI host to the iSCSI virtual 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.
If an Ethernet PortChannel is configured between the IPS module and an Ethernet switch, the load
Note
balancing policy on the Ethernet switch must be based on source/destination IP address only, not port
numbers, for load balancing with VRRP to operate correctly.
iSCSI Authentication Setup Guidelines and Scenarios
This section provides guidelines on iSCSI authentication possibilities, setup requirements, and sample
scenarios. It includes the following authentication setup guidelines:
•
•
•
•
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This section does not specify the steps to enter or exit EXEC mode, configuration mode, or any submode.
Note
Be sure to verify the prompt before issuing any command.
Changing the authentication of an iSCSI interface that is part of an iSLB VRRP group impacts load
Caution
balancing on the interface. See the
Balancing" section on page
Cisco MDS 9000 Family NX-OS IP Services Configuration Guide
4-66
Ethernet PortChannel-Based iSCSI High Availability
iSCSI
HBA
IP
network
iSCSI
HBA
4-20, each iSCSI host discovers one iSCSI target for every physical Fibre Channel target. The
Configuring No Authentication, page 4-67
Configuring CHAP with Local Password Database, page 4-67
Configuring CHAP with External RADIUS Server, page 4-67
iSCSI Transparent Mode Initiator, page 4-68
Target Storage Device Requiring LUN Mapping, page 4-73
4-51.
Ethernet PortChannel
IP-10.1.1.1
pWWN-P1
"Changing iSCSI Interface Parameters and the Impact on Load
Chapter 4 Configuring iSCSI
FC fabric
FC
pWWN-P2
OL-19525-01,Cisco MDS NX-OS Release 4.2(1)