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iSCSI High Availability
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 .
VRRP-Based High Availability
Figure 35-18
Figure 35-18 VRRP-Based iSCSI High Availability
iSCSI
HBA
iqn.host-1
iSCSI
HBA
iqn.host-1
In
Figure
When the Gigabit Ethernet interface of the VRRP master fails, the iSCSI session is terminated. The host
then reconnects to the target and the session comes up because the second Gigabit Ethernet interface has
taken over the virtual IP address as the new master.
Cisco MDS 9000 Family Configuration Guide
35-44
provides an example of a VRRP-based high availability iSCSI configuration.
Physical view (iSCSI)
VRRP across two ports
IP
network
Logical view
Virtual IP-10.1.1.1
IP
network
35-18, each iSCSI host discovers one iSCSI target for every physical Fibre Channel target.
Virtual IP-10.1.1.1
lqn.com.cisco.mds.vr1.gw.p1
lqn.com.cisco.mds.vr1.gw.p1
Chapter 35
Configuring iSCSI
FC
FC fabric
pWWN-P1
FC
FC
OL-6973-03, Cisco MDS SAN-OS Release 2.x
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