Terminology, Iscsi, Isns – Dell PowerVault DP500 User Manual
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Introduction
The following topics are discussed in further sections:
•
Quick install steps—Instructions about creating an iSCSI Target and
establishing connection with a Microsoft iSCSI Initiator
•
End-to-End iSCSI configuration
–
Detailed instructions on installing and configuring the Microsoft
iSCSI Initiator Software and the Microsoft iSCSI software Target
•
Configuring the Initiator-Target connections
–
Setting up secure iSCSI connections
–
Microsoft iSNS Server and other advanced configuration details
NOTE:
Throughout this document the iSCSI Initiator is referred to as the Initiator
and the iSCSI Software Target is referred to as the Target. The iSCSI Target feature
is supported only on systems running the Microsoft Windows Storage Server R2
with SP2 Standard and Enterprise Editions.
Terminology
iSCSI
iSCSI is a standard that carries SCSI commands through Transfer Control
Protocol/Internet Protocol (TCP/IP)—a protocol that enables transport of
block data over IP networks, without the need for a specialized network
infrastructure, such as Fibre Channel. In context of system storage, iSCSI
enables any client/machine (Initiator) on an IP network to contact a remote
dedicated server (Target) and perform block I/O on it just as it would perform
on a local hard disk.
iSNS
Microsoft iSCSI Internet Storage Name Service (iSNS) is a Microsoft
Windows service that processes iSNS registrations, deregistrations, and
queries through TCP/IP from iSNS clients and also maintains a database of
these registrations (similar to a DNS server). A common use for Microsoft
iSNS Server is to allow iSNS clients (Initiators and Targets) to register
themselves and to query for other registered iSNS clients. Registrations and
queries are transacted remotely over TCP/IP.