NAS - Expansion Storage

[Enquiries]

Hi, love the videos you created, really helped me choosing as NAS system and getting set up for the very 1st time. I have a quick question, I have a synology DS1520 NAS, 4 bays with 16tb HDD and the 5th with a 20tb HDD with Synology RAID SHR 2 Drive tolerance, Im slowly going to upgrade the 16TB HDD's to 20TB HDD's and was wondering if i can repurpose the 16TB in an expansion unit with no RAID as an additional backup with the function of backing up the main volume?

[ed]

Yes, with SHR you can combine new and old under the same RAID (SHR). Or you can create a separate RAID using the remaining bays and expansion unit.

I hope this helps.