Native multipathing solution for iscsi, Setting up multipath configurations, 113 setting up multipath configurations – HP 3000 Enterprise Virtual Array User Manual

Page 113: Iscsi initiator properties — targets tab

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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.

EVA iSCSI Connectivity User Guide

113

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