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need external backup and raid advice?

M

maldoror

macrumors regular
Original poster
Mar 20, 2009
105
0
i've got a new macbook pro and need an external drive to back it up and for extra storage.
i'd like 2tb. is a raid array in an external enclosure only the two drives backing each other up? or is it also for speed in accessing data?
i've been looking at owc drives, but i'm still trying to understand what raid does. i can't afford to get a redundant drive..i need to use all the space i can afford.
thanks for any advice.
maldoror
 
Wiki

Depends on what you want. Speed, or Data security, or both. Two drives will get you one of the two. I would go for data security since i have a lot of movies i have ripped and don't want to go thru the process again.

Make sure the drives are the same make and model, and size.
 
Depends on how big the files are. Since you are chopping them up and putting them in different locations the chances of data loss is higher.

Why not RAID 1? One fails you replace that one and rebuild it.
 
if i get 2 1tb hdds for raid 1 does that mean i only have 1tb of storage?
 
i've read bad things about seagate...
what are some other good drives? i'm trying to get 2 1tb drives for about $100 each and an enclosure for around $100 as well.
i also read some drives were set up not to work with raid so you have to spend more to buy their raid drives...i think wd.
also, what are the model numbers of the better drives?

thanks
 
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