On Aug 23, 2009, at 8:12 PM, Daniel Carosone wrote:

On Sun, 23 Aug 2009, Daniel Carosone wrote:
Userland tools to read and verify a stream, without
having to play
it into a pool (seek and io overhead)  could really
help here.

This assumes that the problem is data corruption of
the stream, which
could occur anywhere, even on the originating host.

yes, exactly. consider, for example, a truncated stream because the send was interrupted.

You can validate a stream stored as a file at any time using
the "zfs receive -n" option.  Personally, I prefer to use -n and -u,
but -u is a relatively new option.

Therefore, the procedures we've used for decades still works:
        1. make backup
        2. verify backup
        3. breathe easier

 -- richard

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