You need to ask yourself a few more questions. How much are your files actually worth? How much is your time worth? What kinds of failures are you trying to prevent?
If your time and your files are both worth a lot, and you are worried about your hard drives failing, then put up the money to get a good RAID setup. If you are worried about accidently deleting something, then you'll need to have actual backups going to something else (maybe another RAID setup in the closet down the hall). If you are worried about a failure that will wipe out everything in your house (fire, flood, tornado), then you need to look into some large tapes and a secure place to put them.
But first, decide how much everything is worth. If it is not worth much, just forget about it. If it is worth a lot, then you'll feel better about putting up the money to protect it.
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You need to ask yourself a few more questions. How much are your files actually worth? How much is your time worth? What kinds of failures are you trying to prevent?
If your time and your files are both worth a lot, and you are worried about your hard drives failing, then put up the money to get a good RAID setup. If you are worried about accidently deleting something, then you'll need to have actual backups going to something else (maybe another RAID setup in the closet down the hall). If you are worried about a failure that will wipe out everything in your house (fire, flood, tornado), then you need to look into some large tapes and a secure place to put them.
But first, decide how much everything is worth. If it is not worth much, just forget about it. If it is worth a lot, then you'll feel better about putting up the money to protect it.