So i was gonna buy 3tb time capsule for £350 in uk. Then i thought about it, i don't really need the router extension as our superhub reaches everywhere, and 2TB WD external HD for mac cost £125 and is portable, so i could actually get 6 tb for the price of 3. I wanted the time capsule to make 1tb time machine backup and 2tb of media storage but i'm hearing all around that time capsule lives for 3-5 years on avg and that scares me when my normal harddrive has been working for 7+ years. I don't want to lose my data after 3-5 years and
i can't afford backing up my backup... Any suggestions? I like the wireless backup idea+ wireless harddrive but how fast is wireless transfer speeds for movies and etc? What would u prefer, money isn't a problem but i don't want to waste it for no reason.
It's hard to give you sound advice, without knowing more details, such as: are you backing up from a desktop or a laptop, how much data do you need to back-up, and what OS are you running. If you have a good router, that you are happy with, there's no need to get a TimeCapsule. You can spend that money on those WD drives you are suggesting. However if you value your data, I would rethink that "
can't afford backing up my backup" idea. More on that in a minute. If, as you say, you've had 7+ years out of your current HDD, you've done OK, but there's no guarantee, you'll get the same kind of lifespan out of any hard drive you may purchase in the future.
Wireless back-ups are slow. Any
initial TimeMachine back-up to a
TimeCapsule should be done wired (thru it's Ethernet LAN port, if at all possible), otherwise, depending on how much you're backing-up, it could take ages. Subsequent, also called 'Incremental' back-ups to a TimeCapsule, can easily happen wirelessly, in the background; you won't even notice it, although if you have the option, wired is always preferable.
For any other external HDD used with TimeMachine, you'll just use whatever interface it has, USB, FW, ThunderBolt, etc, that's compatible with your computer.
If you are running Mountain Lion, that's a good thing because ML allows for
Multiple TimeMachine Back-ups allowing you to have back-ups of all your files, on
multiple hard drives,
in multiple locations. Your Time Machine takes 'snapshots' of all the changes that have occurred on your computer, and remembers which Time Capsule/HDD needs which updates, so that a secondary TC/HDD which you might have at work or any other location, will get all the missed changes, that have happened since it was last connected, the moment you plug in that drive.
This is a second tier of security, effectively giving you two back-ups of everything on your computer.
Some of the earlier TimeCapsules became crippled within 12-18 mos, due to burnt-out power supplies, but that issue seems to have been resolved. I can't comment on the reliability of the new TimeCapsules, as they are still too recent, to establish any defect pattern, but if you implement the above noted two-tier back-up strategy, you shouldn't have to worry about
one TC/HDD failing.
Of course, there are always those cloud-based back-up services, like Dropbox, Backblaze, DollyDrive etc, some of which are Time-Capsule compatible, and that have the advantage of not having to worry about frequently updating your 'off-site' or 'second tier of security' drive, and also give you the advantage of 'access anywhere', but most of them are not free, for anything beyond the most basic 5-10 or so, GBs.
If you went ahead, and got those three 2TB WD external HDD's, my suggestion to you would be to keep two of those for TimeMachine backups, one near your main computer, and another one off-site, that you bring in
regularly for updating the 'missed changes'. You could then use that third drive for media storage. Alternatively, you could partition those two drives that you'd be using for TimeMachine backups, which would give you more room for media storage, but that is not recommended practice.
To make sure the third HDD, you're using for media storage, gets backed-up via your TimeMachine, make sure it is formatted as "Mac OS Extended (Journaled)(HFS+)", and
is not excluded in the '
Exclude List' in System Preferences > Time Machine > Options.
I can't comment on wireless transfer speeds for movies, but I suspect they will be similarly slower.
A couple of links that might be of interest to you:
http://www.youtube.com/watch?v=xgYqcL7_0BI
http://www.youtube.com/watch?v=eO-bHcnSNVA&feature=player_embedded
http://www.machelpformom.com/241-set-up-time-machine-backups-to-an-external-usb-drive
http://osxdaily.com/2013/05/01/use-single-hard-drive-time-machine-and-file-storage/
Good Luck!