HP StorageWorks EVA iSCSI Connectivity User Guide (5697-0511, August 2010)

3. Use Microsoft’s iSCSI services to manage the iSCSI target login and LUN load balancing policies
(see Figure 63).
Figure 63 iSCSI Initiator properties — Targets tab
.
Configuring multipath with the VMware iSCSI Initiator
Native multipathing solution for iSCSI
VMware supports a native multipathing solution for iSCSI. However, the software iSCSI Initiator can
run only one instance of VMkernel, hence, it is impossible to bind two different IP addresses with one
VMkernel. But VMware’s support for NIC teaming solves the problem at the server level, avoiding a
single NIC failure. Thus, the VMware’s software iSCSI Initiator support for multipathing is provided
via NIC teaming. The EVA iSCSI connectivity option supports one pair of mpx100/100b units per
EVA. Hence it is possible to have two different physical routes to the same LUN from an ESX server.
Setting up multipath configurations
Multipath setup is similar to single path setup shown in Chapter 4, except for the following steps:
1. Configure the VMkernel TCP/IP networking stack for iSCSI support.
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