Yes, but all data will be deleted. The HDs are formatted. This means backing up data to an external drive before the change.

Hello,

No, this will not work as the two Synologys have different processors.

2 hdd fit into the ds220. i don't think that the hdd including formatting and data can be taken over, as version 7 of the operating system is now used. the pure hdd can of course be used, but will then be reformatted during initialisation