| tunefs.8 (200796) | tunefs.8 (207141) |
|---|---|
| 1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 12 unchanged lines hidden (view full) --- 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)tunefs.8 8.2 (Berkeley) 12/11/93 | 1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 12 unchanged lines hidden (view full) --- 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)tunefs.8 8.2 (Berkeley) 12/11/93 |
| 29.\" $FreeBSD: head/sbin/tunefs/tunefs.8 200796 2009-12-21 19:39:10Z trasz $ | 29.\" $FreeBSD: head/sbin/tunefs/tunefs.8 207141 2010-04-24 07:05:35Z jeff $ |
| 30.\" | 30.\" |
| 31.Dd October 21, 2009 | 31.Dd March 6, 2010 |
| 32.Dt TUNEFS 8 33.Os 34.Sh NAME 35.Nm tunefs 36.Nd tune up an existing file system 37.Sh SYNOPSIS 38.Nm 39.Op Fl A 40.Op Fl a Cm enable | disable 41.Op Fl e Ar maxbpg 42.Op Fl f Ar avgfilesize | 32.Dt TUNEFS 8 33.Os 34.Sh NAME 35.Nm tunefs 36.Nd tune up an existing file system 37.Sh SYNOPSIS 38.Nm 39.Op Fl A 40.Op Fl a Cm enable | disable 41.Op Fl e Ar maxbpg 42.Op Fl f Ar avgfilesize |
| 43.Op Fl j Cm enable | disable |
|
| 43.Op Fl J Cm enable | disable 44.Op Fl L Ar volname 45.Op Fl l Cm enable | disable 46.Op Fl m Ar minfree 47.Op Fl N Cm enable | disable 48.Op Fl n Cm enable | disable 49.Op Fl o Cm space | time 50.Op Fl p 51.Op Fl s Ar avgfpdir | 44.Op Fl J Cm enable | disable 45.Op Fl L Ar volname 46.Op Fl l Cm enable | disable 47.Op Fl m Ar minfree 48.Op Fl N Cm enable | disable 49.Op Fl n Cm enable | disable 50.Op Fl o Cm space | time 51.Op Fl p 52.Op Fl s Ar avgfpdir |
| 53.Op Fl S Ar size |
|
| 52.Ar special | filesystem 53.Sh DESCRIPTION 54The 55.Nm 56utility is designed to change the dynamic parameters of a file system 57which affect the layout policies. 58The 59.Nm --- 24 unchanged lines hidden (view full) --- 84in that cylinder group. 85The effect of this limit is to cause big files to do long seeks 86more frequently than if they were allowed to allocate all the blocks 87in a cylinder group before seeking elsewhere. 88For file systems with exclusively large files, 89this parameter should be set higher. 90.It Fl f Ar avgfilesize 91Specify the expected average file size. | 54.Ar special | filesystem 55.Sh DESCRIPTION 56The 57.Nm 58utility is designed to change the dynamic parameters of a file system 59which affect the layout policies. 60The 61.Nm --- 24 unchanged lines hidden (view full) --- 86in that cylinder group. 87The effect of this limit is to cause big files to do long seeks 88more frequently than if they were allowed to allocate all the blocks 89in a cylinder group before seeking elsewhere. 90For file systems with exclusively large files, 91this parameter should be set higher. 92.It Fl f Ar avgfilesize 93Specify the expected average file size. |
| 94.It Fl j Cm enable | disable 95Turn on/off soft updates journaling. |
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| 92.It Fl J Cm enable | disable 93Turn on/off gjournal flag. 94.It Fl L Ar volname 95Add/modify an optional file system volume label. 96.It Fl l Cm enable | disable 97Turn on/off MAC multilabel flag. 98.It Fl m Ar minfree 99Specify the percentage of space held back --- 31 unchanged lines hidden (view full) --- 131Show a summary of what the current tunable settings 132are on the selected file system. 133More detailed information can be 134obtained from the 135.Xr dumpfs 8 136utility. 137.It Fl s Ar avgfpdir 138Specify the expected number of files per directory. | 96.It Fl J Cm enable | disable 97Turn on/off gjournal flag. 98.It Fl L Ar volname 99Add/modify an optional file system volume label. 100.It Fl l Cm enable | disable 101Turn on/off MAC multilabel flag. 102.It Fl m Ar minfree 103Specify the percentage of space held back --- 31 unchanged lines hidden (view full) --- 135Show a summary of what the current tunable settings 136are on the selected file system. 137More detailed information can be 138obtained from the 139.Xr dumpfs 8 140utility. 141.It Fl s Ar avgfpdir 142Specify the expected number of files per directory. |
| 143.It Fl S Ar size 144Specify the softdep journal size in bytes. 145The minimum is 4M. |
|
| 139.El 140.Pp 141At least one of the above flags is required. 142.Sh FILES 143.Bl -tag -width ".Pa /etc/fstab" 144.It Pa /etc/fstab 145read this to determine the device file for a 146specified mount point. --- 31 unchanged lines hidden --- | 146.El 147.Pp 148At least one of the above flags is required. 149.Sh FILES 150.Bl -tag -width ".Pa /etc/fstab" 151.It Pa /etc/fstab 152read this to determine the device file for a 153specified mount point. --- 31 unchanged lines hidden --- |