Instruction Manual

6 Setting up the iSCSI Initiator for
multipathing
This chapter contains the following topics:
• Overview, page 97
• Configuring multipath with Windows iSCSI initiator, page 102
• Configuring multipath with the VMware iSCSI initiator, page 113
• Configuring multipath with the Solaris 10 iSCSI initiator, page 116
• Configuring multipath with the OpenVMS iSCSI initiator, page 122
• Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays, page 125
Overview
The mpx100/100b supports iSCSI multipath in a single or dual mpx100/100b configuration with
a single EVA storage system.
As with single-path mpx100/100b configurations, presenting EVA LUNs to an iSCSI Initiator is a
two-step process. First the EVA LUN must be presented to the mpx100/100b, and then it must be
presented from the mpx100/100b to the iSCSI Initiator.
Because the mpx100/100b is bridging SCSI commands and data from the host to storage with iSCSI
and Fibre Channel, it is important to understand what multipathing means from each technology's
perspective.
NOTE:
The examples in this section show direct connect configurations between the EVA and the
mpx100/100b. Note, however, that iSCSI multipath is also supported in fabric connections.
IMPORTANT:
Windows XP Professional is not supported by Microsoft's Multipath I/O (MPIO).
Understanding Fibre Channel multipathing for the mpx100/100b
EVA storage array perspective
The mpx100/100b has two FC ports, each having a unique WWPN. When connected to the EVA
storage system, these WWPNs behave like any other WWPN accessing the array. When the iSCSI
host entry is created in HP Command View, all FC port WWPNs are included in the iSCSI host
properties.
EVA iSCSI Connectivity User Guide 97