Table of Contents
Advertisement
Chapter 35
Configuring iSCSI
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 .
Ethernet PortChannel-Based High Availability
All iSCSI data traffic for one iSCSI link is carried on one TCP connection. Consequently, the aggregated
Note
bandwidth is 1 Gbps for that iSCSI link.
Figure 35-19
Figure 35-19 Ethernet PortChannel-Based iSCSI High Availability
iSCSI
iqn.host-2
iSCSI
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:
•
•
•
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.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
provides a sample Ethernet PortChannel-based high availability iSCSI configuration.
HBA
IP
network
HBA
35-19, each iSCSI host discovers one iSCSI target for every physical Fibre Channel target. The
No Authentication, page 35-46
CHAP with Local Password Database, page 35-46
CHAP with External RADIUS Server, page 35-46
iSCSI Authentication Setup Guidelines and Scenarios
Ethernet PortChannel
IP-10.1.1.1
pWWN-P1
Cisco MDS 9000 Family Configuration Guide
FC fabric
FC
pWWN-P2
35-45
Advertisement
Table of Contents
