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One of the forum posts says: > I really love to use syncthing as a anti-bit-rot check system (i already do^^). Bit-rot is something I want to (manually) prote

One of the forum posts says: > I really love to use syncthing as a anti-bit-rot check system (i already do^^). Bit-rot is something I want to (manually) protect against, without setting up a NAS running ZFS. How would you use Syncthing?

nolok 8y ago
I assume if bit-rot happens then a conflict between versions happen (as if the file was changed manually), so you know a file got changed and can recover the previous one ? I doubt there is any self healing capabilities By the way if you're on linux btrfs has self healing capabilities (and any of the cheap 2/4 bay 64bit synology nas can use the btrfs self healing and coupled with raid protect your data from rot). Not a very big expense for a lot of safety.
- pbowyer 8y ago
  Windows unfortunately - love it most of the time but when it comes to file systems... Think a NAS will be a future investment.
  - _emacsomancer_ 8y ago
    A NAS of course could be a rather cheap system running Linux/FreeBSD with three drives in a RAID-Z1 configuration, with SAMBA server. Then you're not dependent on what fs Windows supports (though I recall there being some work towards supporting zfs on Windows, so perhaps eventually).
  - nolok 8y ago
    If going Synology, make sure to go for their 64bit models (I don't think they still sell 32 bits, but unsure); it's needed to support btrfs. Other good brand is QNAP. good quality 2 bay can be found below 300€, 4 bays below 500€. As the other commenter said you can also built it yourself but frankly configuring Samba and its permissions and updating your mdadm config when changing a drive and all the other things gets boring and borderline dangerous really quick, just know that if you buy a pre-made NAS what you're paying is not really the hardware (you can get better for cheaper if homemade), it's the software. I like DSM (synology's software) because it doesn't get in your way, it lets anyone use easily yet still offers the advanced options. If you've never had a NAS or don't want to spend hours in config files every now and then, I recommend it. (as usual the question for devices like this is not so much "how easy is it to set up" but "how easy it to recover if say a drive died and you need to repair your array")
- jabberthemutt 8y ago
  How could inotity notice that though? Bit rot happens at a different level. Detecting it would require regular full data scans, right? And then I guess all files must be write-protected to actually trigger a conflict instead of syncing the corruption. Hmmmmm.
rakoo 8y ago
Use something like snapraid (http://www.snapraid.it http://www.snapraid.it) on the master, perhaps? That's probably the lightest solution you can put in place

nolok 8y ago

I assume if bit-rot happens then a conflict between versions happen (as if the file was changed manually), so you know a file got changed and can recover the previous one ? I doubt there is any self healing capabilities By the way if you're on linux btrfs has self healing capabilities (and any of the cheap 2/4 bay 64bit synology nas can use the btrfs self healing and coupled with raid protect your data from rot). Not a very big expense for a lot of safety.

pbowyer 8y ago
Windows unfortunately - love it most of the time but when it comes to file systems... Think a NAS will be a future investment.
- _emacsomancer_ 8y ago
  A NAS of course could be a rather cheap system running Linux/FreeBSD with three drives in a RAID-Z1 configuration, with SAMBA server. Then you're not dependent on what fs Windows supports (though I recall there being some work towards supporting zfs on Windows, so perhaps eventually).
- nolok 8y ago
  If going Synology, make sure to go for their 64bit models (I don't think they still sell 32 bits, but unsure); it's needed to support btrfs. Other good brand is QNAP. good quality 2 bay can be found below 300€, 4 bays below 500€. As the other commenter said you can also built it yourself but frankly configuring Samba and its permissions and updating your mdadm config when changing a drive and all the other things gets boring and borderline dangerous really quick, just know that if you buy a pre-made NAS what you're paying is not really the hardware (you can get better for cheaper if homemade), it's the software. I like DSM (synology's software) because it doesn't get in your way, it lets anyone use easily yet still offers the advanced options. If you've never had a NAS or don't want to spend hours in config files every now and then, I recommend it. (as usual the question for devices like this is not so much "how easy is it to set up" but "how easy it to recover if say a drive died and you need to repair your array")
jabberthemutt 8y ago
How could inotity notice that though? Bit rot happens at a different level. Detecting it would require regular full data scans, right? And then I guess all files must be write-protected to actually trigger a conflict instead of syncing the corruption. Hmmmmm.

rakoo 8y ago

Use something like snapraid (http://www.snapraid.it http://www.snapraid.it) on the master, perhaps? That's probably the lightest solution you can put in place