Am 07.01.2013 22:07, schrieb Paul Hartman: > On Mon, Jan 7, 2013 at 2:11 PM, Florian Philipp <li...@binarywings.net> wrote: >> Hi list! >> >> I have a use case where I am seriously concerned about bit rot [1] and I >> thought it might be a good idea to start looking for it in my own >> private stuff, too. >> >> Solving the problem is easy enough: >> - Record checksums and timestamps for each file >> - Check and update records via cronjob >> - If checksum changed but timestamp didn't, notify user >> - Let user restore from backup >> >> However, I haven't found any application in portage for this task. Now, >> the implementation is easy enough but I'm wondering why it hasn't been >> done. Or do I just look for the wrong thing? The only suitable thing >> seems to be app-admin/tripwire but that application also looks like >> overkill. > > Not really what you are asking for, but I think btrfs and zfs have > checksumming built-in to the filesystem. I'm not sure what userspace > tools are like to monitor this, or if it's just an fsck away. >
Yes, that's a start. `btrfs scrub start` might give something meaningful. But I'm not really trusting btrfs with valuable data, yet. And CRC32 isn't much, either. Thanks anyway, Florian Philipp
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