HP Brocade 8/12c Web Tools Administrator's Guide (53-1001772-01, June - Page 215

DRAFT: BROCADE CONFIDENTIAL iSCSI service overview 15 TABLE 17 Term iSCSI target gateway services terminology (Continued) Definition LUN mapping Fibre Channel LUN VT LUN Fibre Channel virtual initiator discovery domain (DD) discovery domain set (DDSet) CHAP authentication Logical Unit Number mapping. The mapping of the virtual iSCSI target and the physical Fibre Channel target One frontend LUN (VT LUN) maps to a backend LUN (Fibre Channel LUN). The frontend LUN numbers can be different from the backend LUN numbers. The LUN identifier of the Fibre Channel target. Virtual target LUN. The LUN identifier of the iSCSI virtual target. (FC-VI) The iSCSI port looks like an F_Port to the rest of the system. There is one Fibre Channel virtual initiator per iSCSI. The Fibre Channel proxy initiator solution is used. FC-VI registers to the Name Server with its symbolic port name (PWWN) and node name (NWWN). The FC-VI in the Name Server entry is created irrespective of the host connectivity. Created between and iSCSI host and iSCSI targets using their IQN for the purpose of iSCSI device access control. Created using DDs. Can be configured to enable or disable the configuration for the purpose of iSCSI device access control. Authenticates the initiators against a list of user names and passwords with CHAP (Challenge Handshake Authentication Protocol) authentication in either one-way or mutual. IQN GbE port PDU An iSCSI Qualified Name that indicates an iSCSI node name in a form that is of human readable notation using the following syntax: iqn.yyyy-mm.: Gigabit Ethernet port. Uses a copper CAT-5e cable for an IP connection to an RJ-45 copper connector. FC4-16IP has 8 ports of this type that support 1 Gbps speed. Protocol Data Unit. A unit of data with a header and an optional data section. For additional information about iSCSI target gateway, refer to the Fabric OS Administrator's Guide. Saving changes There are several ways to save changes on the switch and apply them to the fabric (applies to the iSCSI Target Gateway Admin module only): • Apply-Click Apply and your changes are transfered from the Web Tools database to the switches database and distributed throughout the fabric. • Abort-Click Abort to cancel the changes before saving them. The configuration is restored to the last saved data point. • Clear All-The Clear All button, located in the menu bar of the iSCSI module, has the ability to clear all parameters of the iSCSI target gateway databases, including virtual targets, iSCSI initiators, discovery domains, discovery domain sets, and all CHAP users and associated secrets. The IP interface information, however, is not deleted. CAUTION The Clear All button deletes the information from the database. Before you use the Clear All function, perform a configUpload and save a backup of the iSCSI target gateway database. Web Tools Administrator's Guide 187 53-1001772-01