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Improve fsync documentation by stating that -W _0_ turns of write

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caching.
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Bruce Momjian 2012-02-14 17:41:57 -05:00
parent 398f70ec07
commit 58d746213d
1 changed files with 1 additions and 1 deletions
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doc/src/sgml/wal.sgml
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@ -73,7 +73,7 @@
<para> <para>
On <productname>Linux</>, IDE drives can be queried using On <productname>Linux</>, IDE drives can be queried using
<command>hdparm -I</command>; write caching is enabled if there is <command>hdparm -I</command>; write caching is enabled if there is
a <literal>*</> next to <literal>Write cache</>. <command>hdparm -W</> a <literal>*</> next to <literal>Write cache</>. <command>hdparm -W 0</>
can be used to turn off write caching. SCSI drives can be queried can be used to turn off write caching. SCSI drives can be queried
using <ulink url="http://sg.danny.cz/sg/sdparm.html"><application>sdparm</></ulink>. using <ulink url="http://sg.danny.cz/sg/sdparm.html"><application>sdparm</></ulink>.
Use <command>sdparm --get=WCE</command> to check Use <command>sdparm --get=WCE</command> to check