I have been experimenting with SeaGate, but their 2TB drive requires AC power. I'd like to find one that only needs the computer as power.
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Western Digital Passport drives are 2TB and are bus-powered. Performance is almost on-par with the older 2TB internal SATA drives in my system over USB3. (WD green drives)
I also like that they are available in different colors, which helps with identification. Blue & Red for the alternating backup drives, black & silver for non-stop backup and daily backup drives.
They do use a plastic construction though, which was disappointing.
Is thats because in event of power failure the usb poewered drive will still run (of laptop battery) ?
Because it means you don't have to use a bulky power adapter for them, and you can easily have as many drives connected as you have USB ports. (assuming your system can support powering that many drives)
And yes, because you can just plug them directly into any other computer, including laptops, without having to worry about carrying a power adapter around.
EDIT: One thing I should point out though, is that the Acronis backups require Acronis to be read, as they are stored in its archive format.
This has pros and cons. The advantage is that it saves space, because it allows for compression (I think it must be uncompressed DFF files where it's saving space) and incremental backups rather than only storing a copy of the files directly.
The disadvantage is that you can't just plug those drives into another computer and access the data.
I should really look into it and see if there is a more portable solution that offers the same features.
With the 1TB drive that I am only doing ~monthly backups to, I do just delete the existing folder on there, and copy the files via Explorer though.
I should probably see if there's a program that handles file sync for that.
I guess you could use something like Truecrypt. I have been very happy with it but I dont encrypt media files. Also, what about locked archive/zip files ?
The issue with this is that you are then uploading a single file. So if you have 300GB of data, you have to upload 300GB every time you sync if it's encrypted.