Forcing full file read in ZFS even when checksum error encountered

[Joe Peterson]

Dag-Erling Smørgrav wrote:
> Joe Peterson <joe at skyrush.com> writes:
>> When I try to copy the file, I get only 655360 bytes copied, and then the copy
>> stops.  I assume this is because the next block is where the error is.
> 
> Try to lseek past it.

Well, I'd like to actually read the "bad" data too, so I can see if it is
really bad or if there is a metadata issue.  Basically, I'd like to recover
all the file's bytes this once without having ZFS stop me due to the checksum
failure, just for debugging purposes.  Is this impossible in ZFS?

						-Thanks, Joe