Roman Mamedov posted on Fri, 10 Jan 2014 21:16:59 +0600 as excerpted: > On Fri, 10 Jan 2014 14:26:19 +0000 (UTC) > Duncan <1i5t5.dun...@cox.net> wrote: > >> IOW, your backups shouldn't be btrfs, because btrfs itself is testing, >> and any data stored on it is by definition testing-only data you don't >> particularly care about, either because you have good tested-restorable >> backups, or because the data really isn't that valuable to you in the >> first place. > > On the contrary, I think a backup storage area is an excellent place to > start rolling-out btrfs from, because: > > 1) the snapshot capability
Point agreed. =:^) > 2) it's *backups*, by definition it's non-unique replaceable data that > also exists elsewhere (and in this case on the primary storage, that's > probably much less experimental and more redundant as well). > > My primary storage is currently Ext4 and backups are all on btrfs. But what happens if you actually /need/ those backups, and in going to use them, you find they're bugged due to some as yet unfixed bug in still under development btrfs? To me, the /point/ of backups is reliability. I need to *KNOW* they're reliable, and btrfs simply isn't intended or claimed to provide that guaranteed stable reliability yet. While admittedly a lot of people are now using btrfs without issue, and I'm using it here myself as my primary/working copy as well as first level backup (with off-btrfs backups to my first-level btrfs backups), I simply couldn't rest well if I were using it for (all level) backups, because it simply doesn't provide the proven over years level of stability and reliability that for me is the whole /point/ of backups (otherwise, why bother?), yet. Never-the-less, if you're comfortable with that level of additional risk in your backups, it's your system and your data at risk, so more power to you! =:^) But IMO, /recommending/ btrfs for backups at this point (regardless of what I was or was not doing myself, accepting the brown-bag should my decision for my own data turn out to have been a bad one) is nothing other than irresponsible, and as such I could never do it. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
