Changeset 231 for branches/samba-3.2.x/docs/manpages/vfs_prealloc.8
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- May 27, 2009, 9:08:03 AM (16 years ago)
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branches/samba-3.2.x/docs/manpages/vfs_prealloc.8
r229 r231 1 1 .\" Title: vfs_prealloc 2 .\" Author: 3 .\" Generator: DocBook XSL Stylesheets v1.7 3.1<http://docbook.sf.net/>4 .\" Date: 12/19/20082 .\" Author: [see the "AUTHOR" section] 3 .\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/> 4 .\" Date: 02/03/2009 5 5 .\" Manual: System Administration tools 6 6 .\" Source: Samba 3.2 7 .\" Language: English 7 8 .\" 8 .TH "VFS_PREALLOC" "8" "12/19/2008" "Samba 3\.2" "System Administration tools" 9 .TH "VFS_PREALLOC" "8" "02/03/2009" "Samba 3\&.2" "System Administration tools" 10 .\" ----------------------------------------------------------------- 11 .\" * (re)Define some macros 12 .\" ----------------------------------------------------------------- 13 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 14 .\" toupper - uppercase a string (locale-aware) 15 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 16 .de toupper 17 .tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ 18 \\$* 19 .tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz 20 .. 21 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 22 .\" SH-xref - format a cross-reference to an SH section 23 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 24 .de SH-xref 25 .ie n \{\ 26 .\} 27 .toupper \\$* 28 .el \{\ 29 \\$* 30 .\} 31 .. 32 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 33 .\" SH - level-one heading that works better for non-TTY output 34 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 35 .de1 SH 36 .\" put an extra blank line of space above the head in non-TTY output 37 .if t \{\ 38 .sp 1 39 .\} 40 .sp \\n[PD]u 41 .nr an-level 1 42 .set-an-margin 43 .nr an-prevailing-indent \\n[IN] 44 .fi 45 .in \\n[an-margin]u 46 .ti 0 47 .HTML-TAG ".NH \\n[an-level]" 48 .it 1 an-trap 49 .nr an-no-space-flag 1 50 .nr an-break-flag 1 51 \." make the size of the head bigger 52 .ps +3 53 .ft B 54 .ne (2v + 1u) 55 .ie n \{\ 56 .\" if n (TTY output), use uppercase 57 .toupper \\$* 58 .\} 59 .el \{\ 60 .nr an-break-flag 0 61 .\" if not n (not TTY), use normal case (not uppercase) 62 \\$1 63 .in \\n[an-margin]u 64 .ti 0 65 .\" if not n (not TTY), put a border/line under subheading 66 .sp -.6 67 \l'\n(.lu' 68 .\} 69 .. 70 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 71 .\" SS - level-two heading that works better for non-TTY output 72 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 73 .de1 SS 74 .sp \\n[PD]u 75 .nr an-level 1 76 .set-an-margin 77 .nr an-prevailing-indent \\n[IN] 78 .fi 79 .in \\n[IN]u 80 .ti \\n[SN]u 81 .it 1 an-trap 82 .nr an-no-space-flag 1 83 .nr an-break-flag 1 84 .ps \\n[PS-SS]u 85 \." make the size of the head bigger 86 .ps +2 87 .ft B 88 .ne (2v + 1u) 89 .if \\n[.$] \&\\$* 90 .. 91 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 92 .\" BB/BE - put background/screen (filled box) around block of text 93 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 94 .de BB 95 .if t \{\ 96 .sp -.5 97 .br 98 .in +2n 99 .ll -2n 100 .gcolor red 101 .di BX 102 .\} 103 .. 104 .de EB 105 .if t \{\ 106 .if "\\$2"adjust-for-leading-newline" \{\ 107 .sp -1 108 .\} 109 .br 110 .di 111 .in 112 .ll 113 .gcolor 114 .nr BW \\n(.lu-\\n(.i 115 .nr BH \\n(dn+.5v 116 .ne \\n(BHu+.5v 117 .ie "\\$2"adjust-for-leading-newline" \{\ 118 \M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] 119 .\} 120 .el \{\ 121 \M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] 122 .\} 123 .in 0 124 .sp -.5v 125 .nf 126 .BX 127 .in 128 .sp .5v 129 .fi 130 .\} 131 .. 132 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 133 .\" BM/EM - put colored marker in margin next to block of text 134 .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 135 .de BM 136 .if t \{\ 137 .br 138 .ll -2n 139 .gcolor red 140 .di BX 141 .\} 142 .. 143 .de EM 144 .if t \{\ 145 .br 146 .di 147 .ll 148 .gcolor 149 .nr BH \\n(dn 150 .ne \\n(BHu 151 \M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[] 152 .in 0 153 .nf 154 .BX 155 .in 156 .fi 157 .\} 158 .. 159 .\" ----------------------------------------------------------------- 160 .\" * set default formatting 161 .\" ----------------------------------------------------------------- 9 162 .\" disable hyphenation 10 163 .nh 11 164 .\" disable justification (adjust text to left margin only) 12 165 .ad l 13 .SH "NAME" 14 vfs_prealloc - preallocate matching files to a predetermined size 15 .SH "SYNOPSIS" 16 .HP 1 17 vfs objects = prealloc 166 .\" ----------------------------------------------------------------- 167 .\" * MAIN CONTENT STARTS HERE * 168 .\" ----------------------------------------------------------------- 169 .SH "Name" 170 vfs_prealloc \- preallocate matching files to a predetermined size 171 .SH "Synopsis" 172 .fam C 173 .HP \w'\ 'u 174 \FCvfs objects = prealloc\F[] 175 .fam 18 176 .SH "DESCRIPTION" 19 177 .PP 20 178 This VFS module is part of the 21 179 \fBsamba\fR(7) 22 suite\ .180 suite\&. 23 181 .PP 24 182 The 25 vfs_prealloc 26 VFS module preallocates files to a specified size each time a new file is created\ . This is useful in environments where files are of a predetermined size will be written to a disk subsystem where extending file allocations is expensive\.27 .PP 28 This module is stackable\ .183 \FCvfs_prealloc\F[] 184 VFS module preallocates files to a specified size each time a new file is created\&. This is useful in environments where files are of a predetermined size will be written to a disk subsystem where extending file allocations is expensive\&. 185 .PP 186 This module is stackable\&. 29 187 .SH "OPTIONS" 30 188 .PP 31 189 prealloc:EXT = BYTES 32 190 .RS 4 33 Preallocate all files with the extension EXT to the size specified by BYTES\ .191 Preallocate all files with the extension EXT to the size specified by BYTES\&. 34 192 .sp 35 193 The following suffixes may be applied to BYTES: … … 43 201 .IP \(bu 2.3 44 202 .\} 45 K 203 \FCK\F[] 46 204 \- BYTES is a number of kilobytes 47 205 .RE … … 55 213 .IP \(bu 2.3 56 214 .\} 57 M 215 \FCM\F[] 58 216 \- BYTES is a number of megabytes 59 217 .RE … … 67 225 .IP \(bu 2.3 68 226 .\} 69 G 227 \FCG\F[] 70 228 \- BYTES is a number of gigabytes 71 229 .sp … … 76 234 A process writes TIFF files to a Samba share, and the is known these files will almost always be around 4 megabytes (4194304 bytes): 77 235 .sp 78 .RS 4 236 .if n \{\ 237 .RS 4 238 .\} 239 .fam C 240 .ps -1 79 241 .nf 242 .if t \{\ 243 .sp -1 244 .\} 245 .BB lightgray adjust-for-leading-newline 246 .sp -1 247 80 248 \fI[frames]\fR 81 \fIpath = /data/frames\fR 82 \fIvfs objects = prealloc\fR 83 \fIprealloc:tiff = 4M\fR 84 .fi 85 .RE 249 \m[blue]\fBpath = /data/frames\fR\m[] 250 \m[blue]\fBvfs objects = prealloc\fR\m[] 251 \m[blue]\fBprealloc:tiff = 4M\fR\m[] 252 .EB lightgray adjust-for-leading-newline 253 .if t \{\ 254 .sp 1 255 .\} 256 .fi 257 .fam 258 .ps +1 259 .if n \{\ 260 .RE 261 .\} 86 262 .SH "CAVEATS" 87 263 .PP 88 vfs_prealloc 89 is not supported on all platforms and filesystems\ . Currently only XFS filesystems on Linux and IRIX are supported\.264 \FCvfs_prealloc\F[] 265 is not supported on all platforms and filesystems\&. Currently only XFS filesystems on Linux and IRIX are supported\&. 90 266 .SH "VERSION" 91 267 .PP 92 This man page is correct for version 3\ .0\.25 of the Samba suite\.268 This man page is correct for version 3\&.0\&.25 of the Samba suite\&. 93 269 .SH "AUTHOR" 94 270 .PP 95 The original Samba software and related utilities were created by Andrew Tridgell\ . Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\.271 The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.
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