HP 3PAR RedHat and Oracle Linux Implementation Guide

Use the qaucli command to find the MAC address for the 10 Gb CNA, followed by assigning
an IP address to the 10 Gb NIC port.
2. You can verify that the iSCSI Initiator is connected to the iSCSI target port by using the HP 3PAR
OS CLI showhost command.
# showhost
Id Name Persona ----------WWN/iSCSI_Name----------- Port
-- iqn.1994-05.com.redhat:a3df53b0a32d 0:3:1
iqn.1994-05.com.redhat:a3df53b0a32d 1:3:1
NOTE: To enable HP 3PAR Host Explorer functionality, HP recommends host persona 1 for
hosts running RHEL 4 update 6 and later, RHEL 5.0 and later, or RHEL 6.1 and later.
Starting with the HP 3PAR OS 3.1.3 release, host persona 2 can also be used to support the
HP 3PAR Host Explorer functionality on RHEL 5.8 and later or RHEL 6.1 and later.
However, host persona 6 is automatically assigned following a rolling upgrade from HP 3PAR
OS 2.2.x. It is required to change host persona 6 after an upgrade to host persona 1 or 2.
Host persona 1 or 2 enables two functional features:
• Host_Explorer, which requires the SESLun element of host persona 1 or 2
• UARepLun, which notifies the host of newly exported VLUNs and triggers a LUN discovery
request on the host, making the VLUN automatically available. Currently, none of the
supported RHEL versions use the UARepLun, so you must manually scan the newly exported
VLUNs.
3. Create an iSCSI host definition entry by using the HP 3PAR OS CLI createhost -iscsi
<host name> <iSCSI Initiator name> command.
• On an HP 3PAR StoreServ Storage running HP 3PAR OS 3.1.2 or earlier, use
createhost with the -persona 1 option. For example:
# createhost -iscsi -persona 1 redhathost iqn.1994-05.com.redhat:a3df53b0a32d
• On an HP 3PAR StoreServ Storage running HP 3PAR OS 3.1.3, create an iSCSI host
definition by using the following command:
# createhost -iscsi -persona 2 redhathost iqn.1994-05.com.redhat:a3df53b0a32d
4. Verify that the host entry has been created.
Example for an HP 3PAR StoreServ Storage array running HP 3PAR OS 3.1.3 or later:
Creating the iSCSI Host Definition 23