04-10-2025, 04:11 PM
You're correct that Terramaster drives are typically tied to the brand’s specific configurations, so they might not be easily transferable to a new system unless it’s another Terramaster device. Unraid supports ZFS RAID migration from other brands, but that won't apply if your old drives aren’t in a compatible format.
In this case, you’ll need to format the drives when setting up your new NAS (whether with TrueNAS or Unraid). That means you’ll lose the data on those drives unless you have a backup.
Here’s what I recommend:
Backup the data: Before anything else, back up your data. You can use an external drive or cloud storage for this.
Prepare your new NAS: Set up your new system with your new drives, creating the desired file system (ZFS for TrueNAS or XFS/BTRFS for Unraid).
Move your old drives to the new NAS: Once your new setup is ready, you can migrate the data from your backup onto the new drives.
If you're adding a new 16TB drive, it’s a good idea to use that as part of your new storage array. Make sure your data is safe before wiping any drives.
In this case, you’ll need to format the drives when setting up your new NAS (whether with TrueNAS or Unraid). That means you’ll lose the data on those drives unless you have a backup.
Here’s what I recommend:
Backup the data: Before anything else, back up your data. You can use an external drive or cloud storage for this.
Prepare your new NAS: Set up your new system with your new drives, creating the desired file system (ZFS for TrueNAS or XFS/BTRFS for Unraid).
Move your old drives to the new NAS: Once your new setup is ready, you can migrate the data from your backup onto the new drives.
If you're adding a new 16TB drive, it’s a good idea to use that as part of your new storage array. Make sure your data is safe before wiping any drives.