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32 .Dd April 20, 2024
33 .Dt ZFS-SET 8
34 .Os
35 .
36 .Sh NAME
37 .Nm zfs-set
38 .Nd set properties on ZFS datasets
39 .Sh SYNOPSIS
40 .Nm zfs
41 .Cm set
42 .Op Fl u
43 .Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
44 .Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
45 .Nm zfs
46 .Cm get
47 .Op Fl r Ns | Ns Fl d Ar depth
48 .Op Fl Hp
49 .Op Fl j Op Ar --json-int
50 .Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
51 .Oo Fl s Ar source Ns Oo , Ns Ar source Oc Ns … Oc
52 .Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
53 .Cm all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns …
54 .Oo Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns | Ns Ar bookmark Oc Ns …
55 .Nm zfs
56 .Cm inherit
57 .Op Fl rS
58 .Ar property Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
59 .
60 .Sh DESCRIPTION
61 .Bl -tag -width ""
62 .It Xo
63 .Nm zfs
64 .Cm set
65 .Op Fl u
66 .Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
67 .Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
68 .Xc
69 Only some properties can be edited.
70 See
71 .Xr zfsprops 7
72 for more information on what properties can be set and acceptable
73 values.
74 Numeric values can be specified as exact values, or in a human-readable form
75 with a suffix of
76 .Sy B , K , M , G , T , P , E , Z
77 .Po for bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes, exabytes,
78 or zettabytes, respectively
79 .Pc .
80 User properties can be set on snapshots.
81 For more information, see the
82 .Em User Properties
83 section of
84 .Xr zfsprops 7 .
85 .Bl -tag -width "-u"
86 .It Fl u
87 Update mountpoint, sharenfs, sharesmb property but do not mount or share the
88 dataset.
89 .El
90 .It Xo
91 .Nm zfs
92 .Cm get
93 .Op Fl r Ns | Ns Fl d Ar depth
94 .Op Fl Hp
95 .Op Fl j Op Ar --json-int
96 .Oo Fl o Ar field Ns Oo , Ns Ar field Oc Ns … Oc
97 .Oo Fl s Ar source Ns Oo , Ns Ar source Oc Ns … Oc
98 .Oo Fl t Ar type Ns Oo , Ns Ar type Oc Ns … Oc
99 .Cm all Ns | Ns Ar property Ns Oo , Ns Ar property Oc Ns …
100 .Oo Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns | Ns Ar bookmark Oc Ns …
101 .Xc
102 Displays properties for the given datasets.
103 If no datasets are specified, then the command displays properties for all
104 datasets on the system.
105 For each property, the following columns are displayed:
106 .Bl -tag -compact -offset 4n -width "property"
107 .It Sy name
108 Dataset name
109 .It Sy property
110 Property name
111 .It Sy value
112 Property value
113 .It Sy source
114 Property source
115 .Sy local , default , inherited , temporary , received , No or Sy - Pq none .
116 .El
117 .Pp
118 All columns are displayed by default, though this can be controlled by using the
119 .Fl o
120 option.
121 This command takes a comma-separated list of properties as described in the
122 .Sx Native Properties
123 and
124 .Sx User Properties
125 sections of
126 .Xr zfsprops 7 .
127 .Pp
128 The value
129 .Sy all
130 can be used to display all properties that apply to the given dataset's type
131 .Pq Sy filesystem , volume , snapshot , No or Sy bookmark .
132 .Bl -tag -width "-s source"
133 .It Fl j Op Ar --json-int
134 Display the output in JSON format.
135 Specify
136 .Sy --json-int
137 to display numbers in integer format instead of strings for JSON output.
138 .It Fl H
139 Display output in a form more easily parsed by scripts.
140 Any headers are omitted, and fields are explicitly separated by a single tab
141 instead of an arbitrary amount of space.
142 .It Fl d Ar depth
143 Recursively display any children of the dataset, limiting the recursion to
144 .Ar depth .
145 A depth of
146 .Sy 1
147 will display only the dataset and its direct children.
148 .It Fl o Ar field
149 A comma-separated list of columns to display, defaults to
150 .Sy name , Ns Sy property , Ns Sy value , Ns Sy source .
151 .It Fl p
152 Display numbers in parsable
153 .Pq exact
154 values.
155 .It Fl r
156 Recursively display properties for any children.
157 .It Fl s Ar source
158 A comma-separated list of sources to display.
159 Those properties coming from a source other than those in this list are ignored.
160 Each source must be one of the following:
161 .Sy local , default , inherited , temporary , received , No or Sy none .
162 The default value is all sources.
163 .It Fl t Ar type
164 A comma-separated list of types to display, where
165 .Ar type
166 is one of
167 .Sy filesystem , snapshot , volume , bookmark , No or Sy all .
168 .Sy fs ,
169 .Sy snap ,
170 or
171 .Sy vol
172 can be used as aliases for
173 .Sy filesystem ,
174 .Sy snapshot ,
175 or
176 .Sy volume .
177 .El
178 .It Xo
179 .Nm zfs
180 .Cm inherit
181 .Op Fl rS
182 .Ar property Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
183 .Xc
184 Clears the specified property, causing it to be inherited from an ancestor,
185 restored to default if no ancestor has the property set, or with the
186 .Fl S
187 option reverted to the received value if one exists.
188 See
189 .Xr zfsprops 7
190 for a listing of default values, and details on which properties can be
191 inherited.
192 .Bl -tag -width "-r"
193 .It Fl r
194 Recursively inherit the given property for all children.
195 .It Fl S
196 Revert the property to the received value, if one exists;
197 otherwise, for non-inheritable properties, to the default;
198 otherwise, operate as if the
199 .Fl S
200 option was not specified.
201 .El
202 .El
203 .
204 .Sh EXAMPLES
205 .\" These are, respectively, examples 1, 4, 6, 7, 11, 14, 16 from zfs.8
206 .\" Make sure to update them bidirectionally
207 .Ss Example 1 : No Creating a ZFS File System Hierarchy
208 The following commands create a file system named
209 .Ar pool/home
210 and a file system named
211 .Ar pool/home/bob .
212 The mount point
213 .Pa /export/home
214 is set for the parent file system, and is automatically inherited by the child
215 file system.
216 .Dl # Nm zfs Cm create Ar pool/home
217 .Dl # Nm zfs Cm set Sy mountpoint Ns = Ns Ar /export/home pool/home
218 .Dl # Nm zfs Cm create Ar pool/home/bob
219 .
220 .Ss Example 2 : No Disabling and Enabling File System Compression
221 The following command disables the
222 .Sy compression
223 property for all file systems under
224 .Ar pool/home .
225 The next command explicitly enables
226 .Sy compression
227 for
228 .Ar pool/home/anne .
229 .Dl # Nm zfs Cm set Sy compression Ns = Ns Sy off Ar pool/home
230 .Dl # Nm zfs Cm set Sy compression Ns = Ns Sy on Ar pool/home/anne
231 .
232 .Ss Example 3 : No Setting a Quota on a ZFS File System
233 The following command sets a quota of 50 Gbytes for
234 .Ar pool/home/bob :
235 .Dl # Nm zfs Cm set Sy quota Ns = Ns Ar 50G pool/home/bob
236 .
237 .Ss Example 4 : No Listing ZFS Properties
238 The following command lists all properties for
239 .Ar pool/home/bob :
240 .Bd -literal -compact -offset Ds
241 .No # Nm zfs Cm get Sy all Ar pool/home/bob
242 NAME PROPERTY VALUE SOURCE
243 pool/home/bob type filesystem -
244 pool/home/bob creation Tue Jul 21 15:53 2009 -
245 pool/home/bob used 21K -
246 pool/home/bob available 20.0G -
247 pool/home/bob referenced 21K -
248 pool/home/bob compressratio 1.00x -
249 pool/home/bob mounted yes -
250 pool/home/bob quota 20G local
251 pool/home/bob reservation none default
252 pool/home/bob recordsize 128K default
253 pool/home/bob mountpoint /pool/home/bob default
254 pool/home/bob sharenfs off default
255 pool/home/bob checksum on default
256 pool/home/bob compression on local
257 pool/home/bob atime on default
258 pool/home/bob devices on default
259 pool/home/bob exec on default
260 pool/home/bob setuid on default
261 pool/home/bob readonly off default
262 pool/home/bob zoned off default
263 pool/home/bob snapdir hidden default
264 pool/home/bob acltype off default
265 pool/home/bob aclmode discard default
266 pool/home/bob aclinherit restricted default
267 pool/home/bob canmount on default
268 pool/home/bob xattr on default
269 pool/home/bob copies 1 default
270 pool/home/bob version 4 -
271 pool/home/bob utf8only off -
272 pool/home/bob normalization none -
273 pool/home/bob casesensitivity sensitive -
274 pool/home/bob vscan off default
275 pool/home/bob nbmand off default
276 pool/home/bob sharesmb off default
277 pool/home/bob refquota none default
278 pool/home/bob refreservation none default
279 pool/home/bob primarycache all default
280 pool/home/bob secondarycache all default
281 pool/home/bob usedbysnapshots 0 -
282 pool/home/bob usedbydataset 21K -
283 pool/home/bob usedbychildren 0 -
284 pool/home/bob usedbyrefreservation 0 -
285 .Ed
286 .Pp
287 The following command gets a single property value:
288 .Bd -literal -compact -offset Ds
289 .No # Nm zfs Cm get Fl H o Sy value compression Ar pool/home/bob
290 on
291 .Ed
292 .Pp
293 The following command gets a single property value recursively in JSON format:
294 .Bd -literal -compact -offset Ds
295 .No # Nm zfs Cm get Fl j Fl r Sy mountpoint Ar pool/home | Nm jq
296 {
297 "output_version": {
298 "command": "zfs get",
299 "vers_major": 0,
300 "vers_minor": 1
301 },
302 "datasets": {
303 "pool/home": {
304 "name": "pool/home",
305 "type": "FILESYSTEM",
306 "pool": "pool",
307 "createtxg": "10",
308 "properties": {
309 "mountpoint": {
310 "value": "/pool/home",
311 "source": {
312 "type": "DEFAULT",
313 "data": "-"
314 }
315 }
316 }
317 },
318 "pool/home/bob": {
319 "name": "pool/home/bob",
320 "type": "FILESYSTEM",
321 "pool": "pool",
322 "createtxg": "1176",
323 "properties": {
324 "mountpoint": {
325 "value": "/pool/home/bob",
326 "source": {
327 "type": "DEFAULT",
328 "data": "-"
329 }
330 }
331 }
332 }
333 }
334 }
335 .Ed
336 .Pp
337 The following command lists all properties with local settings for
338 .Ar pool/home/bob :
339 .Bd -literal -compact -offset Ds
340 .No # Nm zfs Cm get Fl r s Sy local Fl o Sy name , Ns Sy property , Ns Sy value all Ar pool/home/bob
341 NAME PROPERTY VALUE
342 pool/home/bob quota 20G
343 pool/home/bob compression on
344 .Ed
345 .
346 .Ss Example 5 : No Inheriting ZFS Properties
347 The following command causes
348 .Ar pool/home/bob No and Ar pool/home/anne
349 to inherit the
350 .Sy checksum
351 property from their parent.
352 .Dl # Nm zfs Cm inherit Sy checksum Ar pool/home/bob pool/home/anne
353 .
354 .Ss Example 6 : No Setting User Properties
355 The following example sets the user-defined
356 .Ar com.example : Ns Ar department
357 property for a dataset:
358 .Dl # Nm zfs Cm set Ar com.example : Ns Ar department Ns = Ns Ar 12345 tank/accounting
359 .
360 .Ss Example 7 : No Setting sharenfs Property Options on a ZFS File System
361 The following commands show how to set
362 .Sy sharenfs
363 property options to enable read-write
364 access for a set of IP addresses and to enable root access for system
365 .Qq neo
366 on the
367 .Ar tank/home
368 file system:
369 .Dl # Nm zfs Cm set Sy sharenfs Ns = Ns ' Ns Ar rw Ns =@123.123.0.0/16:[::1],root= Ns Ar neo Ns ' tank/home
370 .Pp
371 If you are using DNS for host name resolution,
372 specify the fully-qualified hostname.
373 .
374 .Sh SEE ALSO
375 .Xr zfsprops 7 ,
376 .Xr zfs-list 8