Palm Coast, FL
reply to ispalten
Re: How do you backup your local data? Eh? 1GbE can support nearly up to 125MB/s, which is nearly at the maximum write speed of my WD Caviar Black drive. It can actually be quite speedy. Add in a RAID array, and you will have the write capacity way beyond GbE, but it still won't be slow by any means.
Again, USB is also relative. Which USB? USB2.0, yeah that's a bit slow now. 3.0? Definitely not slow. It's only 1Gb/s below SATAIII at 6Gb/s. (theoretical.)
Anyway, it depends on the type of USB or "network", it's not really sufficient anymore just to say "USB or network" because those technologies have developed a little.
You can also do nifty things like using managed switches to create a 2GbE backbone between your common LAN and NAS. There are all sorts of options. Another one is powered external eSATA/eSATAp enclosures.