harddisks

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pauljacobs wrote:

 

My previous nas was a synology ds213 +
So i just want to keep my data on the 2terra discs and put them together in my new netgear with 2 new drives of 3terra thus without data loss

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Got it.

The ReadyNAS will need to wipe the Synology disks.  Plus there is an expansion constraint - if you start with 3 TB drives, then you won't be able to add 2 TB drives.

Ideally you would back up the data on the synology first (either to USB or internal disk).

If the synology is using RAID-1, then you can 

• remove one disk from the synology - the data should still be there, since it is mirrored.
• Insert that disk into the ReadyNAS, and do a factory reset.
• Set up the ReadyNAS, and configure shares to hold the Synology data.
• Use ReadyNAS Web UI backup jobs to transfer data from the synology to the ReadyNAS.  I'd use rsync, but you can use SMB.
• Then remove the second disk from the synology, and add it to the array on the ReadyNAS.  You will need to select "format" to add it to the array.
• Wait for the volume to resync (and say "redundant).
• Then insert the first 3 TB drive and wait for resync.
• Finally insert the second 3 TB drive and wait for resync

You'll end up with a 7 TB array (~6.3 TiB) with protection from a single disk failure.

Another option is to keep the synology running, and use it to back up the Netgear.