Defining Iscsi Hosts; View Unassociated Iscsi Initiators - IBM System Storage DS3500 Introduction And Implementation Manual

Draft Document for Review March 28, 2011 12:24 pm
Figure 13-15 iSCSI context Help

13.7 Defining iSCSI hosts

Defining host using an iSCSI Initiator is slightly different than definition of host with FC or SAS
HBA's. In case of iSCSI HW Initiators you can see as many iSCSI host port identifiers as
iSCSI HBA's, installed in such a host. In case of iSCSI SW Initiator, you see just one iSCSI
host port identifier, even if you have more Ethernet cards used for iSCSI in your host server.
Multiple redundant data paths are presented as multiple iSCSI sessions in this case, as
described in section 13.5, "View/End iSCSI Sessions" on page 329.
Definition of a Host with traditional SAS or FC HBA's is described in section 11.2, "Defining
Host" on page 283 in detail. In the following sections we show iSCSI host definition
differences.

13.7.1 View Unassociated iSCSI initiators

A Host definition is provided in Mapping tab of DS Storage Manager. To see if some servers
with active iSCSI Initiator are available to be defined as a host, you can view unassociated
host port identifiers.
Several ways can be used to show unassociated host ports. For example you can select
Mappings  View Unassociated Host Port Identifiers in the Subsystem Management pull
down menu. A new window as in Figure 13-16 on page 334 appears. You can see World
Wide Port Names for SAS or FC HBA,s if you have some, and if an iSCSI Initiator is already
configured and authenticated for access to your DS3500 subsystem, you see IQN name of
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Chapter 13. Administration - iSCSI
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