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| author | Bruce Momjian <bruce@momjian.us> | 2007-12-16 14:03:32 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2007-12-16 14:03:32 +0000 |
| commit | 900f84e27538d44d00650adbfd8349f492f7e4ab (patch) | |
| tree | af92bf9d89b2ec3c62edc892d40b8633b510a5ca /doc/src | |
| parent | d6a18f459a67dc7f4bd4de7346285af29f183182 (diff) | |
| download | postgresql-900f84e27538d44d00650adbfd8349f492f7e4ab.tar.gz postgresql-900f84e27538d44d00650adbfd8349f492f7e4ab.zip | |
Update write-cache docs to mention windows behavior for various
fsync_methods.
Magnus.
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/wal.sgml | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index d1228fdc40c..467c8d46095 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/wal.sgml,v 1.49 2007/12/10 22:08:36 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/wal.sgml,v 1.50 2007/12/16 14:03:32 momjian Exp $ --> <chapter id="wal"> <title>Reliability and the Write-Ahead Log</title> @@ -65,10 +65,13 @@ write caching. On <productname>FreeBSD</> use <application>atacontrol</>. (For SCSI disks use <ulink url="http://sg.torque.net/sg/sdparm.html"><application>sdparm</></ulink> - to turn off <literal>WCE</>.) On <productname>Windows</> write caching is - disabled by unchecking <literal>My Computer\Open\{select disk + to turn off <literal>WCE</>.) On <productname>Windows</> if + <varname>wal_sync_method</> is <literal>open_datasync</> (the default), + write caching is disabled by unchecking <literal>My + Computer\Open\{select disk drive}\Properties\Hardware\Properties\Policies\Enable write caching on - the disk</>. + the disk</>. Also on Windows, <literal>fsync</> and + <literal>fsync_writethrough</> never use write caching. </para> <para> |