OS/ File system repair of a large image file  (such as fossil's) is the way 
ahead?

I say that because I would imagine it better implemented as a fossil background 
activity communicating with a replica elsewhere.

Sent from my iPhone

> On Jun 28, 2016, at 8:30 AM, Karel Gardas <gard...@gmail.com> wrote:
> 
> You need to use something like RAID1 setup with N drives using either
> ZFS or btrfs. If you are on dragonfly bsd probably hammer does that
> too. Also backup and scrub your disk array quite often...
> 
> Ah, just found out that zfs/btrfs is also cited by the article so you
> already know that...
> 
>> On Tue, Jun 28, 2016 at 1:09 PM, Paul Hammant <p...@hammant.org> wrote:
>> Bitrot -
>> http://arstechnica.com/information-technology/2014/01/bitrot-and-atomic-cows-inside-next-gen-filesystems/
>> - data in SSD or HD being corrupted by (say) nutrinos over time. See also a
>> guy/gal lamenting their corrupted photo collection -
>> https://blog.barthe.ph/2014/06/10/hfs-plus-bit-rot/
>> 
>> Anyway, will two fossil installs replicating each other do anything with
>> merkle trees to heal such bitrot silently and in the background?
>> 
>> - Paul
>> 
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