ZFS regimen: scrub, scrub, scrub and scrub again.

[Adam Nowacki]

>> Even better - use UFS.
> Then you'll never know that your data has been corrupted.

This is exactly what happened to me. I had a server connected to a 
failing mains socket. For about a month ZFS reported checksum errors on 
multiple disks, all fixed thanks to raidz2. Socket failed, completely 
burned off, UPS woke me up. Replaced the socket, no checksum errors 
since then.

This is what was in my wall: http://tepeserwery.pl/DSC_0178.JPG