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QNAP TVS-472XT 4-Bay NAS Enclosure User Manual

Page 378

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2. Click Create, and then select New iSCSI Target.

The iSCSI Target Creation Wizard window opens.

3. Click Next.

4. Specify a target name.

QTS appends the specified name to the iSCSI qualified name (IQN). IQNs are unique names used to

identify targets and initiators.

• Valid characters: 0 to 9, a to z, A to Z

• Length: 1 to 16 characters

5. Optional: Specify a target alias.

An alias enables you to identify the target more easily on the initiator.

• Length: 1 to 32 characters

• Valid characters: 0 to 9, a to z, A to Z, underscore (_), hyphen (-), space ( )

6. Optional: Select Allow clustered access to this target.

When enabled, multiple iSCSI initiators can access this target and its LUNs simultaneously.

Warning

To prevent data corruption, the initiators and LUN filesystems must all be cluster-aware.

7. Optional: Enable CRC checksums.

Initiators and targets communicate over TCP connections using iSCSI protocol data units (PDU). The

sending device can send a checksum with each PDU. The receiving device uses this checksum to verify

the integrity of the PDU, which is useful in unreliable network environments. There are two checksum

types, which can be enabled separately.

Checksum Type

Description

Data Digest

The checksum can be used to verify the data portion of the PDU.

Header Digest

The checksum can be used to verify the header portion of the PDU.

8. Click Next.

9. Optional: Enable CHAP authentication.

An initiator must authenticate with the target using the specified username and password. This

provides security, as iSCSI initiators do not require a NAS username or password.

• Username

• Length: 1 to 127 characters

• Valid characters: 0 to 9, a to z, A to Z, colon (:), period (.), hyphen (-)

• Password

• Length: 12 to 16 characters

• Valid characters: 0 to 9, a to z, A to Z, all special characters

10. Optional: Enable mutual CHAP authentication.

Both the initiator and the target must authenticate with each other for additional security. First, the

initiator authenticates with the target using the CHAP authentication username and password. Next,

the target authenticates with the initiator using the mutual CHAP username and password.

QTS 4.4.x User Guide

iSCSI & Fibre Channel

377