Of course, you don't necessarily need a second NAS to create a good backup solution. I for one have a pool of four hard drives that I backup important files from the NAS on to each month, in a rotation.
Because you are either incredibly optimistic or somewhat naive that your hard drives will last forever.
i usually upgraded my hard drives about every third/fourth year and handed used ones down to some friends/relatives who still got some years of usage out of them. just a few months ago found old 120 gig ide drive from a box and replaced 20 gig in g4 powermac with it. still works.
i guess i have some five hundred plus data dvd-s in my cellar, backups of everything digital that passed through my computers.. still got the documentation (copied from streamer cassettes) from my first computer-related job..
actually, the point i'm arriving to is that if you got halfway decent drives your first problem is running out of space (no matter the size, half a tera or two), not drive failure, unless you try something incredibly stupid. the point made above about user actions as major cause of data loss is more valid than we all care to think.
suggestion about buying another nas is good if you have money to use. i would suggest to buy not the same nas as you have already, but something more serious, with more disk bays (four, maybe), hot swap capability and some extra drives as spares from the very beginning.
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Topic: Upgrading Drives: How do I get data on new drives? (Read 11429 times)