Western Digital WD Sentinel RX4100 User Manual - Manual (Page 91)

9
MANAGING ISCSI STORAGE
85 WD SENTINEL RX4100
ADMINISTRATOR AND MAINTENANCE GUIDE
Managing iSCSI Storage
iSCSI Overview
iSCSI Roles
Managing iSCSI Targets
iSCSI Overview
Internet SCSI (iSCSI) is an industry standard developed to enable transmission of SCSI
block storage commands and data over an existing IP network by using the TCP/IP
protocol. The encapsulated SCSI commands and data can be transmitted over a local area
network (LAN) or a wide area network (WAN). As with traditional SCSI, an iSCSI storage
solution requires at least one “initiator” residing on the client computer and at least one
“target” residing on the storage server.
Once the connection is established between the iSCSI initiator and the iSCSI target, the
operating system on the iSCSI initiator sees the storage as a local storage device that can
be formatted, read and written in the usual manner.
Your WD Sentinel server allows you to create and manage iSCSI targets. The iSCSI target
provides storage, similar to a local hard disk drive, but is accessed over a network rather
than locally. The iSCSI target is protected by the underlying RAID structure of the WD
Sentinel server.
iSCSI Roles
Initiator: A client computer that accesses storage devices using SCSI commands over an
IP network.
Target: A network-attached storage device that provides access to logical disks (which can
be created on the WD Sentinel server).
Managing iSCSI Targets
Click the iSCSI icon to open the iSCSI page: