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| author | Bruce Momjian <bruce@momjian.us> | 2007-12-10 14:51:10 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2007-12-10 14:51:10 +0000 |
| commit | 3e113efdf06e1f8b5e4a89b2bdccf36d48217698 (patch) | |
| tree | f2216759f227c74a99a22ee5f1849614ab6f1129 | |
| parent | 51a33519b0d32c8617aceb6beb259fde0c3887ac (diff) | |
| download | postgresql-3e113efdf06e1f8b5e4a89b2bdccf36d48217698.tar.gz postgresql-3e113efdf06e1f8b5e4a89b2bdccf36d48217698.zip | |
Write cache doc cleanups
Greg Smith
| -rw-r--r-- | doc/src/sgml/wal.sgml | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 55cd6b1d6b8..2d0886334ab 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 1.47 2007/12/10 14:05:05 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/wal.sgml,v 1.48 2007/12/10 14:51:10 momjian Exp $ --> <chapter id="wal"> <title>Reliability and the Write-Ahead Log</title> @@ -57,11 +57,11 @@ And finally, most disk drives have caches. Some are write-through while some are write-back, and the same concerns about data loss exist for write-back drive caches as - exist for disk controller caches. Consumer-grade IDE drives are + exist for disk controller caches. Consumer-grade IDE and SATA drives are particularly likely to have write-back caches that will not survive a power failure. To check write caching on <productname>Linux</> use <command>hdparm -I</>; it is enabled if there is a <literal>*</> next - to <literal>Write cache</>. <command>hdparm -W</> can to turn off + to <literal>Write cache</>. <command>hdparm -W</> to turn off write caching. On <productname>FreeBSD</> use <application>atacontrol</>. (For SCSI disks use <ulink url="http://sg.torque.net/sg/sdparm.html"><application>sdparm</></ulink> |