With iSCSI, we can use a NAS storage as a local disk. This video shows how to create iSCSI Target on QNAP NAS.
1.Creating an iSCSI Target * Go to Storage & Snapshot > iSCSI Storage.
* Click on Storage & Snapshots.
* Click on OK in Do you want Quick Configuration Wizard?
* Click Next.
* Type the iSCSI Target name and then Next.
* Enter CHAP info if you plan to use it.
* Click Apply in Summary.
2. Create LUN
* Select storage space and location.
* Configure LUN name and capacity.
* Click Finish in the Summary.
Now, you should have the iSCSI Target listed.
Please view this step by step video: