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-rw-r--r--doc/src/sgml/wal.sgml5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml
index 96d4916e0e9..4d111903a76 100644
--- a/doc/src/sgml/wal.sgml
+++ b/doc/src/sgml/wal.sgml
@@ -85,8 +85,9 @@
<listitem>
<para>
On <productname>FreeBSD</>, IDE drives can be queried using
- <command>atacontrol</command>, and SCSI drives using
- <command>sdparm</command>.
+ <command>atacontrol</command> and write caching turned off using
+ <literal>hw.ata.wc=0</> in <filename>/boot/loader.conf</>;
+ SCSI drives use <command>sdparm</command>.
</para>
</listitem>