diff options
| author | Zdenek Kabelac <zkabelac@redhat.com> | 2012-01-09 12:28:47 +0000 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2012-01-09 12:28:47 +0000 |
| commit | e49622ef17e9bb5d75567fa5f21b80cad2f00168 (patch) | |
| tree | 332201151f3b46ef20e8d3bfe93e6f20e6d9a7c5 /man | |
| parent | 044abcf91b8f97afff7fac59d66ac463a598858b (diff) | |
| download | lvm2-e49622ef17e9bb5d75567fa5f21b80cad2f00168.tar.gz lvm2-e49622ef17e9bb5d75567fa5f21b80cad2f00168.tar.xz lvm2-e49622ef17e9bb5d75567fa5f21b80cad2f00168.zip | |
Improve readahead in dmsetup man page
Diffstat (limited to 'man')
| -rw-r--r-- | man/dmsetup.8.in | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/man/dmsetup.8.in b/man/dmsetup.8.in index 35158484..f3e230c2 100644 --- a/man/dmsetup.8.in +++ b/man/dmsetup.8.in @@ -15,6 +15,8 @@ dmsetup \- low level logical volume management .RS .IR table_file ] .RB [{ \-\-addnodeoncreate | \-\-addnodeonresume }] +.RB [ \-\-readahead +.RI [ \+ ]< sectors >| auto | none ] .RE .br .B dmsetup deps @@ -85,6 +87,10 @@ dmsetup \- low level logical volume management .B dmsetup resume .I device_name .RB [{ \-\-addnodeoncreate | \-\-addnodeonresume }] +.RS +.RB [ \-\-readahead +.RI [ \+ ]< sectors >| auto | none ] +.RE .br .B dmsetup setgeometry .I device_name cyl head sect start @@ -202,11 +208,11 @@ Specify which fields to display. .TP .IR \fB\-\-readahead \ [ \+ ]< sectors >| auto | none Specify read ahead size in units of sectors. -The default value is "auto" which allows the kernel to choose -a suitable value automatically. The + prefix lets you +The default value is \fIauto\fP which allows the kernel to choose +a suitable value automatically. The \fI\+\fP prefix lets you specify a minimum value which will not be used if it is smaller than the value chosen by the kernel. -"None" is equivalent to specifying zero. +The value \fInone\fP is equivalent to specifying zero. .TP .BR \-r | \-\-readonly Set the table being loaded read-only. @@ -248,6 +254,8 @@ Destroys the table in the inactive table slot for device_name. .RB [ \-\-notable | \-\-table .RI < \fItable >| table_file ] .RB [{ \-\-addnodeoncreate | \-\-addnodeonresume }] +.RB [ \-\-readahead +.RI [ + ]< sectors >| auto | none ] .br Creates a device with the given name. If table_file or <table> is supplied, the table is loaded and made live. @@ -402,6 +410,8 @@ After a uuid has been set it cannot be changed. .B resume .I device_name .RB [{ \-\-addnodeoncreate | \-\-addnodeonresume }] +.RB [ \-\-readahead +.RI [ + ]< sectors >| auto | none ] .br Un-suspends a device. If an inactive table has been loaded, it becomes live. |