Module Name: src
Committed By: jdolecek
Date: Mon Apr 24 09:57:59 UTC 2017
Modified Files:
src/share/man/man4: wd.4
Log Message:
add a NOTE section documenting the broken Seagate Barracuda drives
To generate a diff of this commit:
cvs rdiff -u -r1.16 -r1.17 src/share/man/man4/wd.4
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man4/wd.4
diff -u src/share/man/man4/wd.4:1.16 src/share/man/man4/wd.4:1.17
--- src/share/man/man4/wd.4:1.16 Thu Aug 4 15:40:20 2011
+++ src/share/man/man4/wd.4 Mon Apr 24 09:57:59 2017
@@ -1,4 +1,4 @@
-.\" $NetBSD: wd.4,v 1.16 2011/08/04 15:40:20 matt Exp $
+.\" $NetBSD: wd.4,v 1.17 2017/04/24 09:57:59 jdolecek Exp $
.\"
.\"
.\" Copyright (c) 1994 James A. Jegers
@@ -23,7 +23,7 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd August 30, 2004
+.Dd April 24, 2017
.Dt WD 4
.Os
.Sh NAME
@@ -64,6 +64,27 @@ and
.Xr badsect 8
the software list does neither support sector replacement nor is it saved
across reboots.
+.Sh NOTES
+Certain
+Seagate
+.Tn Barracuda
+drives sold around year 2003 have known firmware bug leading to corrupted
+write transfers for sector counts n*15 + 1, in combination with certain
+ATA controllers, most commonly
+.Tn Silicon Image
+3xxx.
+Affected drives include, but are not limited to:
+.Pp
+.Bl -tag -width Ds -offset indent -compact
+.It Seagate ST3120023AS
+.It Seagate ST380023AS
+.It Seagate ST360015AS
+.El
+.Pp
+If you have one of these drives, it's recommended to replace the drive.
+There used to exist a driver workaround greatly reducing performance,
+but the code was completely removed in
+.Nx 8.0 .
.Sh SEE ALSO
.Xr ata 4 ,
.Xr intro 4 ,
