Synology Upgrade Swap!

General
1

Hi all! I have a quick question on upgrading my Synology Setup.

  1. I have a DS1522+ filled with 5 18TB Drives with 1 drive tolerance. I also have a Ds220+ with a 18TB and 16TB drive, RAID 0 which backups the main Synology via hyper backup. All of this works perfectly, but I do not have an offsite backup.

  2. I want to purchase the Dx517 Unit and take 2 drives from the Main to add to the DX unit. This way the DS 220+ becomes the offsite backup instead of being the onsite backup of the main.

I just saw Spacerex’s video on this, but my fear is finding the best way to reduce the 1522+ so that it’s only using 3 of the 5 hard drives without losing data (All of the data is currently on the Ds220+ via Hyperbackup)

What is the best way of approaching this? 🫶🏼

2

If you plan to use two of your five disks as a backup of the remaining three disks you need to rebuild the existing storage pool as a RAID with three disks. This operation will delete all data.
A DX517 to house the two disks is an option, but does not add any value unless you need the bays in the main unit. You can configure the two disks while in the DS1522+ as a new storage pool.
If you prefer to create a pool without fault tolerance, consider JBOD instead of RAID0 for better flexibility.