HP EVA Array iSCSI Connectivity Option - Manual (Page 112)

Figure 62 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.
112 Setting up the iSCSI Initiator for multipathing