User manual

iSCSI Storage

The NAS supports a built-in iSCSI (Internet Small Computer System Interface) service for server

clustering and virtualized environments.

Users can enable or disable the iSCSI service, change the port of the iSCSI portal, enable/disable the

iSNS service, and list and manage all iSCSI targets and LUNs on this page. The NAS supports multiple

iSCSI targets and multiple LUNs per target. iSCSI LUNs can be mapped or unmapped to a specific

target. In this chapter, these topics are covered:

 iSCSI Configuration

 Optimizing iSCSI Performance

 Advanced ACL

 Snapshot

Note:

The function or its content is only applicable on some models. To check for

applicable models, please refer to the product comparison table on the QNAP website.

iSCSI Configuration

The NAS supports the built-in iSCSI service. To use this function, follow the steps below:

1. Install an iSCSI initiator on the computer (Windows PC, Mac, or Linux).

2. Create an iSCSI target on the NAS.

3. Run the iSCSI initiator and connect to the iSCSI target on the NAS.

4. After successful logon, format the iSCSI target (disk volume). The disk volume on the NAS can

then be used as a virtual drive for the computer.

Between the computer and the storage device, the computer is called an initiator because it initiates

the connection to the device, and the storage device is referred to as a target. An iSCSI LUN is a

logical volume mapped to the iSCSI target and there are two types of LUNs: file-based LUN and

block-based LUN. File-based LUN is the legacy LUN, while block-based LUN is available for certain

NAS models. Please refer to the product comparison table for details.

The table below lists the features supported by block-based LUNs and file-based LUNs:

Block-based LUN

(recommended)

File-based LUN (Legacy)

VAAI Full Copy

Supported