Key Terms - Brocade Communications Systems A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

Key terms

For definitions of SAN-specific terms, visit the Storage Networking Industry Association online
dictionary at: http://www.snia.org/education/dictionary.
For definitions specific to Brocade and Fibre Channel, see the Brocade Glossary.
The following terms are used in this manual to describe the iSCSI gateway service and its
components.
discovery domain
discovery domain set
FC portal
iSCSI virtual initiator
IQN
iSCSI initiator
iSCSI portal
iSCSI Gateway Service Administrator's Guide
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(DD) A group of iSCSI virtual targets and iSCSI initiators. Discovery domains
are used for access control and authentication. Only the iSCSI initiators in the
same discovery domain as the iSCSI virtual targets can connect to the FC
targets. When there are no discovery domains, all iSCSI initiators can access
all iSCSI virtual targets (and therefore all FC targets) on the gateway.
(DDSet) A group of discovery domains that can be enabled or disabled. The
set is used to configure access control and authentication models.
An FC_Port that connects the iSCSI virtual initiator to the SAN.
(iSCSI VI) Proxies iSCSI initiator connections to iSCSI virtual target with the
physical FC targets on the SAN. Each iSCSI-enable port has one iSCSI virtual
initiator. An iSCSI virtual initiator is similar to an F_Port in the fabric. The iSCSI
VI registers with the Name Server using a symbolic port name (PWWN) and
node name (NWWN).
(iSCSI Qualified Name) An iSCSI address that uniquely identifies an iSCSI
device on the network. It is the equivalent of a Fibre Channel WWN and is in
human readable form. The iSCSI gateway supports only IQNs and does not
support IEEE, EUI, and IEEE NAA names.
In client/server terminology, a client that connects to a service (iSCSI virtual
target) offered by the server (iSCSI gateway). It is identified by an IQN. The
iSCSI initiator proxies communications between applications and data
located on a remote SCSI devices to allow applications to access data from a
remote SCSI device, such as an FC target across a TCP/IP network.
An iSCSI-enabled FC4-16IP GbE port that is assigned an IP address and
connected to the (IP) network. This port receives the iSCSI initiator
connection to the iSCSI virtual target. The port is bound to an iSCSI virtual
initiator that connects to the FC target in the SAN.
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