5 ms·

If you are really concerned about bitrot, and raid is apparently "not the solution", generate your own parity files for important stuff: http://parchive.sourcef

by wernerb 13y ago

If you are really concerned about bitrot, and raid is apparently "not the solution", generate your own parity files for important stuff: http://parchive.sourceforge.net/#clients http://parchive.sourceforge.net/#clients

lmm 13y ago
That's very fiddly compared to using ZFS and getting it "for free".
- e40 13y ago
  Unless ZFS isn't easily available on the OS you are using.
  - rbanffy 13y ago
    Linux has an easy to install port (http://zfsonlinux.org/ http://zfsonlinux.org/). I remember OSX as having to use it via FUSE. I guess that leaves only Windows. OS/2 had installable filesystems. Does Windows have something like it?
    - Freaky 13y ago
      OS X has a native port - http://open-zfs.org/wiki/Distributions#ZFS-OSX http://open-zfs.org/wiki/Distributions#ZFS-OSX Windows has ReFS - http://en.wikipedia.org/wiki/ReFS http://en.wikipedia.org/wiki/ReFS
      - rbanffy 13y ago
        I didn't mean like ZFS, but like installable filesystems. It should be possible, with some effort, make ZFS run on Windows. ReFS is beta-quality and lack several features ZFS has since its first production-grade release. It's not really an apples to apples comparison.
- wernerb 13y ago
  Depends on what you find fiddly. With par2 I can move the files to other filesystems without problems, not being bound to ZFS (bsd) means a lot to me. I will reconsider when Btrfs is stable.
rakoo 13y ago
And if you don't want to do it manually, use solutions that already do this along with other nice stuff: I'm thinking about Snapraid[0] for instance. [0] http://snapraid.sourceforge.net/compare.html http://snapraid.sourceforge.net/compare.html
mnw21cam 13y ago
The original intention for parchive was to split files into multiples for posting on usenet. The bonus - you get n extra files, so that if any of the sub-files are broken, you can reconstruct it. I use it for my backups, both automated and manual. For my photos, I write a set of 10-15 DVD-sized tar archives containing files that haven't been backed up yet, using a tool I wrote. I then run parchive to generate two or three DVD-sized ECC files, so if any one DVD gets trashed I can recover it. Then it's just a matter of burning the DVDs and stacking them somewhere off-site.

by wernerb 13y ago

lmm 13y ago

That's very fiddly compared to using ZFS and getting it "for free".

e40 13y ago
Unless ZFS isn't easily available on the OS you are using.
- rbanffy 13y ago
  Linux has an easy to install port (http://zfsonlinux.org/ http://zfsonlinux.org/). I remember OSX as having to use it via FUSE. I guess that leaves only Windows. OS/2 had installable filesystems. Does Windows have something like it?
  - Freaky 13y ago
    OS X has a native port - http://open-zfs.org/wiki/Distributions#ZFS-OSX http://open-zfs.org/wiki/Distributions#ZFS-OSX Windows has ReFS - http://en.wikipedia.org/wiki/ReFS http://en.wikipedia.org/wiki/ReFS
    - rbanffy 13y ago
      I didn't mean like ZFS, but like installable filesystems. It should be possible, with some effort, make ZFS run on Windows. ReFS is beta-quality and lack several features ZFS has since its first production-grade release. It's not really an apples to apples comparison.
wernerb 13y ago
Depends on what you find fiddly. With par2 I can move the files to other filesystems without problems, not being bound to ZFS (bsd) means a lot to me. I will reconsider when Btrfs is stable.

rakoo 13y ago

And if you don't want to do it manually, use solutions that already do this along with other nice stuff: I'm thinking about Snapraid[0] for instance. [0] http://snapraid.sourceforge.net/compare.html http://snapraid.sourceforge.net/compare.html

mnw21cam 13y ago

The original intention for parchive was to split files into multiples for posting on usenet. The bonus - you get n extra files, so that if any of the sub-files are broken, you can reconstruct it. I use it for my backups, both automated and manual. For my photos, I write a set of 10-15 DVD-sized tar archives containing files that haven't been backed up yet, using a tool I wrote. I then run parchive to generate two or three DVD-sized ECC files, so if any one DVD gets trashed I can recover it. Then it's just a matter of burning the DVDs and stacking them somewhere off-site.