https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211381
--- Comment #4 from braddeic...@hotmail.com ---
Yes I was suspicious of the script when I removed and readded the device and it
worked for a while, but the script kept saying degraded. How I can tell it's
gone wrong again however is in zpool iostat -v when all data is dropped from
the arc and capacity stays 100% free despite writes.
# dtrace -n 'sdt:::l2arc-iodone /args[0]->io_error != 0/ { printf("io_error =
%d", args[0]->io_error); }'
dtrace: description 'sdt:::l2arc-iodone ' matched 1 probe
dtrace: buffer size lowered to 512k
CPU ID FUNCTION:NAME
0 57400 none:l2arc-iodone io_error = 22
3 57400 none:l2arc-iodone io_error = 22
1 57400 none:l2arc-iodone io_error = 22
1 57400 none:l2arc-iodone io_error = 22
1 57400 none:l2arc-iodone io_error = 22
3 57400 none:l2arc-iodone io_error = 22
3 57400 none:l2arc-iodone io_error = 22
3 57400 none:l2arc-iodone io_error = 22
1 57400 none:l2arc-iodone io_error = 22
3 57400 none:l2arc-iodone io_error = 22
0 57400 none:l2arc-iodone io_error = 22
1 57400 none:l2arc-iodone io_error = 22
0 57400 none:l2arc-iodone io_error = 22
2 57400 none:l2arc-iodone io_error = 22
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