Dell PowerVault NX1950 Deployment Manual

Also see for PowerVault NX1950: Deployment guide Important information Getting started Installation guide Installation and troubleshooting guide

Contents

8 IntroductionTerms and DefinitionsThe following sections describe the terms used in this document.PowerVault NX1950 Storage Solution Vs. PowerVault NX1950 ClusterSolutionThroughout this document, the term PowerVault NX1950 storage systemrefers to the individual storage unit. The term PowerVault NX1950 storagesolution refers to the configuration of the storage unit along with the storagearrays. The term PowerVault NX1950 cluster solution refers to theconfiguration of more than one storage units and the storage arrays.iSCSIiSCSI is a standard that carries SCSI commands through Transfer ControlProtocol/Internet Protocol (TCP/IP)—a protocol that enables transport ofblock data over IP networks, without the need for a specialized networkinfrastructure, such as Fibre Channel.In the context of system storage, iSCSI enables any client/machine (Initiator)on an IP network to contact a remote dedicated server (Target) and performblock I/O on it just as it would perform on a local hard disk.iSNSMicrosoft iSCSI Internet Storage Name Service (iSNS) is a service thatprocesses iSNS registrations, deregistrations, and queries through TCP/IP fromiSNS clients and also maintains a database of these registrations (similar to aDNS server). A common use for Microsoft iSNS Server is to allow iSNS clients(Initiators and Targets) to register themselves and to query for other registerediSNS clients. Registrations and queries are transacted remotely over TCP/IP.You can download and install the iSNS server from the Microsoft Supportwebsite at support.microsoft.com on a separate server that does not haveMicrosoft iSCSI Initiator or Target installed.NOTE: For details about installing and configuring the iSNS server, see "Appendix"on page 55.