Synology DS411SLIM manual Manage iSCSI Target with Storage Manager, Iscsi, ISCSI Target and LUN

Synology DiskStation User's Guide

Based on DSM 3.1

Manage iSCSI Target with Storage Manager

Go to Main Menu > Storage Manager and click the iSCSI Target tab to manage iSCSI Targets on your Synology DiskStation. You can manage up to 10 or 321 iSCSI Targets on one Synology DiskStation, and map iSCSI LUNs to them.

Term Explanation

iSCSI

iSCSI is an Internet Protocol based storage networking standard for linking data storage facilities. By carrying SCSI commands over IP networks, iSCSI can facilitate data transfers over local area networks (LANs), wide area networks (WANs), or the Internet.

Through iSCSI, the space on storage server will be regarded as local disks by client’s operation system. But in reality, all data transferred to the disk are actually transferred over network to the storage server.

iSCSI Target and LUN

In SCSI terminology, A LUN (logical unit number) represents an individually addressable (logical) SCSI device that is part of a physical SCSI device (called "Target").

An iSCSI environment emulates the connection to a SCSI hard disk. An iSCSI Target is like a connection interface, and LUNs are essentially numbered disk drives. When an iSCSI Target is connected by an iSCSI initiator (a client), all the LUNs mapped to the iSCSI Target are virtually attached to the client’s operation system. Therefore, Initiators can establish and manage file systems on iSCSI LUNs, as they would a raw SCSI or IDE hard drive.

To create an iSCSI Target:

1Click the Create button.

2Enter the iSCSI Target's information, including Name, IQN, and whether to enable CHAP authentication.

3Click Next.

4Set up iSCSI LUN mapping. Select Create a new iSCSI LUN or Map existing iSCSI LUNs.

Note: For more information about creating iSCSI LUNs, see "Manage iSCSI LUNs with Storage Manager" on Page 54.

5Click Next.

6Click Back to modify or Apply to confirm settings.

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132 iSCSI targets are supported on specific models only. Please visit www.synology.com.

Chapter 4: Manage Storage Space