![]() ![]() ![]() I wrote one backup solution myself, had one written by a friend that thinks quite different from me, and use Bacula on the third because lol. ![]() Different system, different PSU, different CPU manufacturer, different disks, different OS, different file system, different backup software, different building construction style, different form of government, etc. I myself recommend three disks running ZFS mirroring with scraping and regular snapshots, and two other locations running the same setup, but with a completely independent implementation. Don't even try, it's encrypted with one-time pads.)ĥ. (NASA has this principle.) (I've got the most important stuff on special paper in special containers at locations I will not disclose. Assume that everything that can fail *will* fail. (Like file system snapshots.) Because what good are backups if you back up creeping corruption or user errors too?Ĥ. Ideally it would be more than three, but three is a healthy cut-off point, unless your got crazy mission critical stuff, swim in money, and want to go full six sigma )ģ. (This is because I follow the scientific principle of trust through statistical reliability. Backups, disks, systems, locations (as in: buildings/cities/countries), restoration hardware, you name it. They do not care for your data, other than to leak it and use it against you.Ģ. So I hope you don't feel too offended to accept what I said too.ġ. Hey, I did that very thing too, not more than a few months ago. Looking at the emotional personal attack you started your comment with, you seem to never have thought about that one, and so just knee-jerked a often-parroted meme of frankly, dangerous half-knowledge. using more different implementations, as monocultures are risky. And off-site can be done by having the ZFS-using system be separate from your normal system. Snapshots, used correctly, provide versioning. It's just that of course you need to have the other properties of a backup solution too! Namely, versioning, and off-site storage. And triplicating is what you should do as part of a backup solution too! Because, let's be honest, triplicating and checksumming everything makes far more sense than the other weird RAID schemes, and that scrubbing is not part of every file system, is messed-up. ![]() It is just that any other backup solution is not a backup solution then too.Ĭorrectly used RAID can be part of a backup solution!Īnd ZFS is by far the best one here. You know, I used to believe that "RAID is not a backup solution".Īnd it is not wrong. Shanen then added "with minimal time and effort" to the original question - but leave your own thoughts and suggestions in the comments. Different system, different PSU, different CPU manufacturer, different disks, different OS, different file system, different backup software, different building construction style, different form of government, etc." Slashdot reader BAReFO0t recommends " three disks running ZFS mirroring with scraping and regular snapshots, and two other locations running the same setup, but with a completely independent implementation. Or maybe you want to share a bit about how you handle your backups? Or your version of the ultimate backup system.? Not so much interested in the commercial stuff (though I do feel like I still own what I paid for) as I'm interested in old personal files - but that might call for access to the ancient programs that created those files. How about a mail-in service to read old CDs and floppies and extract any recoverable data? I'm pretty sure I spotted an old box of floppies a few months ago. That work would include identifying dupes while maintaining archival images of the original file systems, especially for my searches that might be based on the original folder hierarchies or on related files that I can recall being created around the same time or on the same machine. I'd prefer most of the work to be done on the server side, actually. Low overhead on the clients with the file systems that are being backed up. I think the ultimate backup would be cloud-based, though I can imagine a local solution running on a smart storage device - not too expensive, and with my control over where the data is actually stored. I've researched this topic a number of times in the past and never found a good answer. Long-time Slashdot reader shanen noticed a strange sound in one of their old machines, prompting them to ponder: what is the ultimate backup system? ![]()
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