> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Robert Watzlavick
> What failure scenario could have caused this?  The file was obviously
> initially good on the raidz because it got backed up to the USB drive
> and that matches the "good" version from the web.

How can you outrule the possibility of "something changed the file."
Intentionally, not as a form of filesystem corruption. 

If you have snapshots on your ZFS filesystem, you can use zhist (or whatever
technique you want) to see in which snapshot(s) it changed, and find all the
unique versions of it.  'Course that will only give you any valuable
information if you have different versions of the file in different

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