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| author | mpp <mpp@FreeBSD.org> | 1996-05-31 21:02:16 +0000 |
|---|---|---|
| committer | mpp <mpp@FreeBSD.org> | 1996-05-31 21:02:16 +0000 |
| commit | afa38eb3c4d1e60c7c8819dd27987fddd2437f53 (patch) | |
| tree | 6f21a6a123e93bdc62527dbe3ed943a00b6e0847 /share/man | |
| parent | 9926d3d1070d3f4662246ab5c74b7507faa0fd57 (diff) | |
| download | FreeBSD-src-afa38eb3c4d1e60c7c8819dd27987fddd2437f53.zip FreeBSD-src-afa38eb3c4d1e60c7c8819dd27987fddd2437f53.tar.gz | |
Mention that the default update time of 30 seconds may be
changed with sysctl(8) by changing the kern.update variable.
Also make a couple of minor cosmetic changes.
Diffstat (limited to 'share/man')
| -rw-r--r-- | share/man/man4/update.4 | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/share/man/man4/update.4 b/share/man/man4/update.4 index 8db326d..faaf353 100644 --- a/share/man/man4/update.4 +++ b/share/man/man4/update.4 @@ -37,7 +37,7 @@ .Os FreeBSD .Sh NAME .Nm update -.Nd flush internal filesystem caches to disk frequently +.Nd flush internal filesystem caches to disk periodically .Sh SYNOPSIS .Nm update .Sh DESCRIPTION @@ -46,7 +46,12 @@ The kernel process helps protect the integrity of disk volumes by flushing volatile cached filesystem data -to disk at thirty second intervals. +to disk. This is done at thirty second intervals by default. +The time period may be changed by using +.Xr sysctl 8 +to modify the +.Va kern.update +variable. The .Nm update process does the equivalent of the @@ -57,12 +62,13 @@ function call to do the task. .Xr fsck 8 , .Xr init 8 , .Xr rc 8 , -.Xr sync 8 +.Xr sync 8 , +.Xr sysctl 8 .Sh BUGS It is possible on some systems that a .Xr sync occurring simultaneously with a crash may cause -file system damage. See +file system damage. See .Xr fsck 8 . .Sh HISTORY An |
