I have an Imac with so much video and music that I am almost filled up. I want to get an external hard drive to add space, but also want to back up all of my files. I have looked at Backblaze and many others. I am trying to figure out the best way to back up so much data without spending a fortune. Is online backup the way to go? Imovie files take up so much space that my 1TB internal fills up almost immediately. Trying to figure out the best option. Backblaze said 2GB per day will be backed up. That means that it will never all be backed up. Help!
This is a difficult question, because I think it depends on how you use your files, your budget, and the value you place on them.
The easiest solution would be some kind of Carbonite of Backblaze service that backs up your entire drive online. However, that will take years (leaving you vulnerable in the meantime) and it might take several months to restore if that becomes necessary. Frankly, I don't see why anyone uses their services.
Assuming you are silling to spend some money and value your data, you might want to try a version of the system I use. I have several 1TB external hard drives. One serves as my time machine backup. The others are handled manually. I move files (smart data management will make this easy) into one of the drives every few days. After about a week, I take that drive to my office, and transfer all of the data to another drive. I keep doing this until the office drive gets full. Then, I retire both external drives. One stays in the office in a box, and the other goes home into its box. I then buy two new drives and repeat. My data is valuable and irreplaceable, so it makes sense to have it in two physical locations. Fire, theft, etc. shouldn't impact me at all.
But, what about that week or so between transfers? Well, I also have online backup. I only ever use a few dozen gigabytes of data at any point (the files I am working with and changing--the rest is archived on those external drives), so I backup to Sugarsync. Dropbox is another nice service. You might consider Carbonite or another similar service for these files (prioritize them for upload). I have a 60GB account, but I will probably reduce that next spring.
There is a lot of redundancy, and each external drive costs about 100 dollars, but it is a worthwhile investment, in my opinion, since I have gone paperless and all of my research, books, receipts, etc. are there. Even if a hard drive should fail, I still have another backup of it as well. It is difficult to see how I could permanently lose any data (not impossible, but at least unlikely).
For external drives, I recommend WD, but I don't think it matters a whole lot, because the insides are all pretty much the same.
One benefit of my system is that you only need a few dozen gigabytes of hard drive on your computer. This greatly reduces the cost of drives, puts you in the range of SSDs (I haven't gotten one yet, though), and with the online backup makes it entirely possible to work with the iPad for extended periods of time.