Lines Matching +full:default +full:- +full:on
23 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 .Op Fl O Ar filesystem-type
39 .Op Fl S Ar sector-size
42 .Op Fl b Ar block-size
43 .Op Fl c Ar blocks-per-cylinder-group
44 .Op Fl d Ar max-extent-size
46 .Op Fl f Ar frag-size
50 .Op Fl k Ar held-for-metadata-blocks
51 .Op Fl m Ar free-space
63 utility builds a file system on the specified special file.
75 .Bl -tag -width indent
79 Erasing is only relevant to flash-memory or thinly provisioned devices.
83 Enable journaling on the new file system via gjournal.
93 .It Fl O Ar filesystem-type
96 The default format is UFS2.
100 Enable soft updates on the new file system.
101 Soft updates are enabled by default for UFS2 format file systems.
108 The default value is 16.
111 for more details on how to set this option.
112 .It Fl b Ar block-size
115 .\" If changing the default block size and it causes the default
117 .\" the first backup superblock on the fsck_ffs.8 manual page.
119 default size is 32768 bytes, and the smallest allowable size is 4096 bytes.
123 .It Fl c Ar blocks-per-cylinder-group
125 The default is to compute the maximum allowed by the other parameters.
127 dependent on a number of other parameters, in particular the block size
129 .It Fl d Ar max-extent-size
132 The default value is the file system blocksize.
139 The default is about one quarter of the total blocks in a cylinder group.
142 for more details on how to set this option.
143 .It Fl f Ar frag-size
150 .\" If changing the default fragment size or it changes because of a
151 .\" change to the default block size, be sure to update the location
152 .\" of the first backup superblock on the fsck_ffs.8 manual page.
153 The default is 4096 bytes.
157 The expected average number of files per directory on the file system.
160 The default is to create an inode for every
161 .Pq 2 * Ar frag-size
166 specifies the average file size on the file system.
168 Enable soft updates journaling on the new file system.
186 Thus a write-intensive workload will have reduced throughput on a
195 any errors brought on by media failure.
196 A full fsck can be done by running a background fsck on a live
199 flag on an unmounted filesystem.
202 in background on a live filesystem the filesystem performance
206 Running a full fsck on a UFS filesystem is the equivalent of
207 running a scrub on a ZFS filesystem.
208 .It Fl k Ar held-for-metadata-blocks
216 By default
220 Enable multilabel MAC on the new file system.
221 .It Fl m Ar free-space
224 The default value used is
232 for more details on how to set this option.
236 directory on the new file system.
246 will work on the file system.
247 This option is intended primarily for memory or vnode-backed file systems that
258 allocating blocks, or to try to minimize the space fragmentation on the disk.
260 the default is to optimize for
263 the default is to optimize for
267 for more details on how to set this option.
298 of 0 can also be used to choose the default value.
301 value cannot be larger than the default one,
304 Turn on the TRIM enable flag.
308 The trim enable flag is typically set for flash-memory devices to
309 reduce write amplification which reduces wear on write-limited
310 flash-memory and often improves long-term performance.
316 Their default values are taken from the disk label.
319 to build a file system whose raw image will eventually be used on a
320 different type of disk than the one on which it is initially created
321 (for example on a write-once disk).
326 .Bl -tag -width indent
327 .It Fl S Ar sector-size
330 .Sh NOTES ON THE NAMING
341 Creates a new ufs file system on
375 .%J ACM Transactions on Computer Systems 2
377 .%P pp 181-197