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50-50
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 50 Configuring iSCSI
iSCSI High Availability
Tip Check the syslog for details on merge conflicts.
User intervention is not required when the same iSLB initiator has a different set of non-conflicting
initiator targets. The merged configuration is the union of all the initiator targets.
iSCSI High Availability
The following high availability features are available for iSCSI configurations:
• Transparent Target Failover, page 50-50
• Multiple IPS Ports Connected to the Same IP Network, page 50-53
• VRRP-Based High Availability, page 50-54
• Ethernet PortChannel-Based High Availability, page 50-55
Transparent Target Failover
The following high availability configurations are available:
• iSCSI high availability with host running multi-path software
• iSCSI High availability with host not having multi-path software
iSCSI High Availability with Host Running Multi-Path Software
Figure 50-36 shows the physical and logical topology for an iSCSI HA solution for hosts running
multi-path software. In this scenario, the host has four iSCSI sessions. There are two iSCSI sessions from
each host NIC to the two IPS ports.
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