On Thu, 15 Nov 2012, Thomas Mueller wrote:
I think that's pretty much standard behaviour. The solution appears to be
to "wake" it up with the following incantation:
dd if=/dev/null of=/dev/da0 count=0
That's what works here. See the thread starting with
<http://lists.freebsd.org/pipermail/freebsd-questions/2010-February/212109.html>
true > /dev/da0
is a little shorter and safer. The search keywords for this are "GEOM
retaste" or "retasting".
Could you also do a read such as
dd if=/dev/da0 of=/dev/null bs=16k count=1
Unfortunately, no. Retastes are only done after a device has been
opened for write. true(1) is nice for that because it never actually
writes anything.
This still feels awkward and dangerous to me, and I'd like to see an
explicit gretaste command.
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