From ea9c103237ae9a42cc8e7acdf837df959c03c107 Mon Sep 17 00:00:00 2001 From: Bruce Momjian Date: Tue, 13 Apr 2010 14:15:25 +0000 Subject: [PATCH] Add "SSD" acronym mention for solid state drive mention. --- doc/src/sgml/wal.sgml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/src/sgml/wal.sgml b/doc/src/sgml/wal.sgml index 1cc5c6f7eb..b69bc0be68 100644 --- a/doc/src/sgml/wal.sgml +++ b/doc/src/sgml/wal.sgml @@ -1,4 +1,4 @@ - + Reliability and the Write-Ahead Log @@ -61,7 +61,7 @@ particularly likely to have write-back caches that will not survive a power failure, though ATAPI-6 introduced a drive cache flush command (FLUSH CACHE EXT) that some file systems use, e.g. ZFS. - Many solid-state drives also have volatile write-back + Many solid-state drives (SSD) also have volatile write-back caches, and many do not honor cache flush commands by default. To check write caching on Linux use hdparm -I; it is enabled if there is a * next -- 2.40.0