62 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
3.7.3  General recommendation
This section covers general preferences that are related to iSCSI.
Planning for host attachments
An iSCSI client, which is known as an iSCSI initiator, sends SCSI commands over an IP 
network to an iSCSI target. A single iSCSI initiator or iSCSI target is called an iSCSI node. 
You can use the following types of iSCSI initiators in host systems:
/SM590000Software initiator: Available for most operating systems (OS), including AIX, Linux, and 
Windows.
/SM590000Hardware initiator: Implemented as a network adapter with an integrated iSCSI processing 
unit, which is also known as an iSCSI HBA.
Make sure that iSCSI initiators, targets, or both that you plan to use are supported. Use the 
following websites for reference:
/SM590000IBM Storwize V7000 V8.1 Support page 
/SM590000IBM Knowledge Center for IBM Storwize V7000 
/SM590000hIBM System Storage Interoperation Center (SSIC) 
iSCSI qualified name
A Storwize V7000 cluster can provide up to eight iSCSI targets, one per node. Each Storwize 
V7000 node has its own IQN, which, by default, is in the following form: 
iqn.1986-03.com.ibm:2145.<clustername>.<nodename>
An alias string can also be associated with an iSCSI node. The alias enables an organization 
to associate a string with the iSCSI name. However, the alias string is not a substitute for the 
iSCSI name.
3.7.4  iSCSI Extensions for RDMA (iSER)
IBM Spectrum Virtualize V8.2.1 introduced support for iSER host attachment for the Storwize 
V7000 Gen2+ by using RoCE or iWARP transport protocol, depending on HBA hardware and 
host platforms that provide the following components:
/SM590000A fully Ethernet based infrastructure (no Fibre Channel) in the Data center 
/SM590000IBM SAN Volume Controller or Storwize inter-node communication
/SM590000HyperSwap (SVC/Storwize)
The system supports node-to-node connections that use Ethernet protocols that support 
remote direct memory access (RDMA) technology, such as RDMA over Converged Ethernet 
(RoCE) or iWARP. 
Note: Ethernet link aggregation (port trunking) or channel bonding for the Storwize V7000 
nodes’ Ethernet ports is not supported for the 1 Gbps ports.
Note: The cluster name and node name form part of the IQN. Changing any of them might 
require reconfiguration of all iSCSI nodes that communicate with the Storwize V7000.