iSCSI - Anyone had any joy adding iSCSI and making it persistant after a reboot?

Hi all.
I managed to get hold of an old QNAP with 4x 3TB SATA disks.
I set them up as a Raid and have managed to join it via iSCSI to ZimaOS (files) but it’s not persistant after a reboot and unfortunatly not visible in the ZimaOS storage screen. That means I can use the migrate function to move my Photos/Music/etc to the QNAP.

Thanks.