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Diffstat (limited to 'sbin/tunefs/tunefs.8')
| -rw-r--r-- | sbin/tunefs/tunefs.8 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sbin/tunefs/tunefs.8 b/sbin/tunefs/tunefs.8 index b95ff9d..fbec66c 100644 --- a/sbin/tunefs/tunefs.8 +++ b/sbin/tunefs/tunefs.8 @@ -39,10 +39,12 @@ .Nd tune up an existing file system .Sh SYNOPSIS .Nm tunefs +.Op Fl A .Op Fl a Ar maxcontig .Op Fl d Ar rotdelay .Op Fl e Ar maxbpg .Op Fl m Ar minfree +.Op Fl p .Bk -words .Op Fl o Ar optimize_preference .Ek @@ -54,6 +56,10 @@ which affect the layout policies. The parameters which are to be changed are indicated by the flags given below: .Bl -tag -width Ds +.It Fl A +The file system has several backups of the super-block. Specifying +this option will cause all backups to be modified as well as the +primary super-block. This is potentially dangerous - use with caution. .It Fl a Ar maxcontig This specifies the maximum number of contiguous blocks that will be laid out before forcing a rotational delay (see @@ -103,6 +109,12 @@ fragmentation on the disk. Optimization for space has much higher overhead for file writes. The kernel normally changes the preference automatically as the percent fragmentation changes on the file system. +.It Fl p +This option shows a summary of what the current tuneable settings +are on the selected file system. More detailed information can be +obtained in the +.Xr dumpfs 8 +manual page. .El .Sh SEE ALSO .Xr fs 5 , |
