K 10
svn:author
V 7
asomers
K 8
svn:date
V 27
2013-10-14T21:34:49.002747Z
K 7
svn:log
V 320
When a vdev generates IO errors, mark it as FAULTED instead of DEGRADED.
Checksum errors will still be marked as DEGRADED.  This matches the behavior
of Illumos.  I had to make a number of methods virtual to facilitate unit
testing.

Submitted by:	alans
Approved by:	ken (mentor)
Sponsored by:	Spectra Logic Corporation

END