6 setting up the iscsi initiator for multipathing – HP 3000 Enterprise Virtual Array User Manual

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iSCSI Initiator setup for OpenVMS .............................................................................................. 92

Configuring TCP/IP services ................................................................................................. 93
Configuring VLANs
............................................................................................................ 93
Enabling Ethernet jumbo frames
........................................................................................... 93
Configuring target discovery
................................................................................................ 93
Starting the iSCSI Initiator .................................................................................................... 95
Stopping the iSCSI Initiator .................................................................................................. 96
Setting up storage for OpenVMS
.......................................................................................... 96

6 Setting up the iSCSI Initiator for multipathing ....................................... 97

Overview ................................................................................................................................. 97

Understanding Fibre Channel multipathing for the mpx100/100b ............................................ 97

EVA storage array perspective ....................................................................................... 97
The mpx100/100b perspective ..................................................................................... 98

Understanding iSCSI multipathing with the mpx100/100b ...................................................... 99

iSCSI Initiator perspective ........................................................................................... 100

Configuring multipath with Windows iSCSI Initiator ..................................................................... 102

Microsoft MPIO multipathing support for iSCSI ..................................................................... 102

Installing the MPIO feature for Windows Server 2008 .................................................... 102
Installing the MPIO feature for Windows Server 2003 .................................................... 104
Load balancing features of Microsoft MPIO for iSCSI ..................................................... 108
Microsoft MPIO with QLogic iSCSI HBA ........................................................................ 109

Configuring multipath with the VMware iSCSI Initiator ................................................................. 113

Native multipathing solution for iSCSI ................................................................................. 113
Setting up multipath configurations
..................................................................................... 113
Managing multipathing ..................................................................................................... 114
VMware LUN multipathing policies
..................................................................................... 114
Viewing and changing multipathing ................................................................................... 115
Viewing raw mapped LUNs properties
................................................................................ 115
Important information about multi-initiators and VMFS clusters ................................................ 116

Configuring multipath with the Solaris 10 iSCSI Initiator ............................................................... 116

MPxIO overview .............................................................................................................. 116

Preparing the host system ............................................................................................ 117
Setting configuration settings
....................................................................................... 117
Verifying configuration settings .................................................................................... 118
Verifying that a single device is displayed for each LUN ................................................. 119
Enabling MPxIO ........................................................................................................ 120
Verifying the MPxIO configuration
................................................................................ 120
Verify mpath-support parameter and Target Portal Group ................................................ 121

Configuring multipath with the OpenVMS iSCSI Initiator .............................................................. 122

Path description string format ............................................................................................. 122
Displaying path information
............................................................................................... 122
Manual path switching ...................................................................................................... 124

Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays ................................... 125

Supported operating systems ............................................................................................. 125
Installing the Device Mapper Multipath Enablement Kit ......................................................... 126
iSCSI Initiator timeout settings for Red Hat 4 and SUSE 9 systems
........................................... 126
iSCSI Initiator timeout settings for Red Hat 5 and SUSE 10 systems
......................................... 126
HPDM Multipath restrictions
............................................................................................... 126

7 Using HP Command View EVA to configure LUNs to iSCSI Initiators ...... 127

Initial discovery of the mpx100/100b via HP Command View EVA ............................................... 127
Creating an iSCSI Initiator host via HP Command View EVA ......................................................... 128
Presenting a virtual disk to an iSCSI Initiator via HP Command View EVA ....................................... 129

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