Hi Edward,

well that was exactly my point, when I raised this question. If zfs send is 
able to identify corrupted files while it transfers a snapshot, why shouldn't 
scrub be able to do the same?

ZFS send quit with an I/O error and zpool status -v showed my the file that 
indeed had problems. Since I thought that zfs send also operates on the block 
level, I thought whether or not scrub would basically do the same thing.

On the other hand scrub really doesn't care about what to read from the device 
- it simply reads all blocks, which is not the case when running zfs send.

Maybe, if zfs send could just go on and not halt on an I/O error and instead 
just print out the errors…

Cheers,
budy
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