HP EVA Array iSCSI Connectivity Option - Manual (Page 123)

Override Path: NA
Path State: OK
Disabled: no
Target Ports:
Name: 4000002a0000,iqn.1986-03.com.hp:fcgw.mpx100:mpx100
66.0.50001fe150002f70.50001fe150002f78,0
Relative ID: 0
Name: 4000002a0000,iqn.1986-03.com.hp:fcgw.mpx100:mpx100-
66.0.50001fe150002f70.50001fe150002f7a,0
Relative ID: 0
Name: 4000002a0000,iqn.1986-03.com.hp:fcgw.mpx100:mpx100-
65.1.50001fe150002f70.50001fe150002f7e,0
Relative ID: 0
#
Configuring multipath with the OpenVMS iSCSI Initiator
Multipath support for the OpenVMS iSCSI Initiator is native to OpenVMS. No additional software is
required for full iSCSI multipath support.
When the OpenVMS Initiator is loaded, it uses the manual or iSNS discovery mechanisms to locate all
viable paths to all accessible storage targets. It maintains an active login with every path to each target.
If the current active path fails, I/O can be automatically failed over to another available path.
As with other interconnects supported by OpenVMS, the multipath software performs initial path selection
and is responsible for path failover in the event the active path fails. The user can effect multipath
changes (such as manual path switching) using the DCL command:
SET DEVICE /qualifier /PATH=path-description-string device-name
Path description string format
iSCSI path description strings are significantly longer than the description strings used for other multipath
interconnects, such as Fibre Channel. An example of a typical iSCSI path description string is shown
in Figure 63 and Table 18 .
EVA iSCSI connectivity user guide 123