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  1. Hi Kris and Alan,
  3. Love the show. I'm not yet a full-time user of BSD but listening to this show is slowly converting me.
  5. What I do have right now is a FreeNAS box which I use to store family photos/videos and share via samba.
  7. My question is...
  9. Yesterday I had a bit of a scare as I saw ZFS reporting something like this:
  11. ----------------------------------------------------------------
  12. # zpool status -v
  13.   pool: vol1
  14.  state: ONLINE
  15. status: One or more devices has experienced an error resulting in data
  16.         corruption.  Applications may be affected.
  17. action: Restore the file in question if possible.  Otherwise restore the
  18.         entire pool from backup.
  19.    see: http://www.sun.com/msg/ZFS-8000-8A
  20. ...
  21. ----------------------------------------------------------------
  23. And a list of a bunch of videos of my kids listed after as corrupt files.
  25. My pool is a 2TBx3 (6TB total) stripe array.
  27. I switched the nas off and reseated the HDD's to see if that would help. Then I turned it back on and tried to copy files off to another PC (via samba). I got a read error and gave up then went back to look at FreeNAS again and even MORE files were listed as corrupt under zpool status.
  30. I was then about to give up and thought I would try a scrub to see if it would help (there was no redundency in the array so not sure if it could). After the 5 hour scrub though the result was this:
  32. ----------------------------------------------------------------
  33. pool: vol1
  34.  state: ONLINE
  35.   scan: scrub repaired 0 in 4h45m with 0 errors on Mon Feb  1 13:00:23 2016
  36. ----------------------------------------------------------------
  39. How is that possible the errors could fix themselves? I tried to view the corrupted files and they viewed fine.
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