-'\" te
+'\" t
+.\"
+.\" CDDL HEADER START
+.\"
+.\" The contents of this file are subject to the terms of the
+.\" Common Development and Distribution License (the "License").
+.\" You may not use this file except in compliance with the License.
+.\"
+.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+.\" or http://www.opensolaris.org/os/licensing.
+.\" See the License for the specific language governing permissions
+.\" and limitations under the License.
+.\"
+.\" When distributing Covered Code, include this CDDL HEADER in each
+.\" file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+.\" If applicable, add the following below this CDDL HEADER, with the
+.\" fields enclosed by brackets "[]" replaced with your own identifying
+.\" information: Portions Copyright [yyyy] [name of copyright owner]
+.\"
+.\" CDDL HEADER END
+.\"
+.\"
.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
+.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
.\" Copyright (c) 2012 by Delphix. All rights reserved.
-.\" Copyright (c) 2012 Nexenta Systems, Inc. All Rights Reserved.
.\" Copyright (c) 2012, Joyent, Inc. All rights reserved.
-.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
-.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
-.\" See the License for the specific language governing permissions and limitations under the License. When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with
-.\" the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
-.TH zfs 8 "Aug 16, 2012" "ZFS pool 28, filesystem 5" "System Administration Commands"
+.\" Copyright 2012 Nexenta Systems, Inc. All Rights Reserved.
+.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
+.\"
+.TH zfs 8 "Jan 10, 2013" "ZFS pool 28, filesystem 5" "System Administration Commands"
.SH NAME
zfs \- configures ZFS file systems
.SH SYNOPSIS
.LP
.nf
-\fBzfs\fR \fBuserspace\fR [\fB-niHp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-sS\fR \fIfield\fR] ...
- [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
+\fBzfs\fR \fBuserspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-s\fR \fIfield\fR] ...
+ [\fB-S\fR \fIfield\fR] ... [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
.fi
.LP
.nf
-\fBzfs\fR \fBgroupspace\fR [\fB-niHp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-sS\fR \fIfield\fR] ...
- [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
+\fBzfs\fR \fBgroupspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-s\fR \fIfield\fR] ...
+ [\fB-S\fR \fIfield\fR] ... [\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
.fi
.LP
.ad
.sp .6
.RS 4n
-Controls the checksum used to verify data integrity. The default value is \fBon\fR, which automatically selects an appropriate algorithm (currently, \fBfletcher2\fR, but this may change in future releases). The value \fBoff\fR disables integrity checking on user data. Disabling checksums is \fBNOT\fR a recommended practice.
+Controls the checksum used to verify data integrity. The default value is \fBon\fR, which automatically selects an appropriate algorithm (currently, \fBfletcher4\fR, but this may change in future releases). The value \fBoff\fR disables integrity checking on user data. Disabling checksums is \fBNOT\fR a recommended practice.
.sp
Changing this property affects only newly-written data.
.RE
.ne 2
.mk
.na
-\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR
+\fBcompression\fR=\fBon\fR | \fBoff\fR | \fBlzjb\fR | \fBgzip\fR | \fBgzip-\fR\fIN\fR | \fBzle\fR | \fBlz4\fR
.ad
.sp .6
.RS 4n
.sp
The \fBzle\fR (zero-length encoding) compression algorithm is a fast and simple algorithm to eliminate runs of zeroes.
.sp
+The \fBlz4\fR compression algorithm is a high-performance replacement
+for the \fBlzjb\fR algorithm. It features significantly faster
+compression and decompression, as well as a moderately higher
+compression ratio than \fBlzjb\fR, but can only be used on pools with
+the \fBlz4_compress\fR feature set to \fIenabled\fR. See
+\fBzpool-features\fR(5) for details on ZFS feature flags and the
+\fBlz4_compress\fR feature.
+.sp
This property can also be referred to by its shortened column name \fBcompress\fR. Changing this property affects only newly-written data.
.RE
.sp
If the \fBsharesmb\fR property is set to \fBoff\fR, the file systems are unshared.
.sp
-In Linux, the share is created with the acl "Everyone:F" by default, meaning that everyone have read access. This however isn't the full truth: Any access control on the underlaying filesystem supersedes this.
+In Linux, the share is created with the ACL (Access Control List) "Everyone:F" ("F" stands for "full permissions", ie. read and write permissions) and no guest access (which means samba must be able to authenticate a real user, system passwd/shadow, ldap or smbpasswd based) by default. This means that any additional access control (dissalow specific user specific access etc) must be done on the underlaying filesystem.
+.sp
+.in +2
+Example to mount a SMB filesystem shared through ZFS (share/tmp):
+.mk
+Note that a user and his/her password \fBmust\fR be given!
+.sp
+.in +2
+smbmount //127.0.0.1/share_tmp /mnt/tmp -o user=workgroup/turbo,password=obrut,uid=1000
+.in -2
+.in -2
.sp
.ne 2
.mk
.in +2
* Samba will need to listen to 'localhost' (127.0.0.1) for the zfs utilities to communitate with samba. This is the default behavior for most Linux distributions.
.sp
-* See the \fBUSERSHARE\fR section of the \fBsmb.conf\fR(5) man page for all configuration options.
+* Samba must be able to authenticate a user. This can be done in a number of ways, depending on if using the system password file, LDAP or the Samba specific smbpasswd file. How to do this is outside the scope of this manual. Please refer to the smb.conf(5) manpage for more information.
+.sp
+* See the \fBUSERSHARE\fR section of the \fBsmb.conf\fR(5) man page for all configuration options in case you need to modify any options to the share afterwards. Do note that any changes done with the 'net' command will be undone if the share is every unshared (such as at a reboot etc). In the future, ZoL will be able to set specific options directly using sharesmb=<option>.
.sp
.in -2
.RE
.ne 2
.mk
.na
+\fB\fBsnapdev\fR=\fBhidden\fR | \fBvisible\fR\fR
+.ad
+.sp .6
+.RS 4n
+Controls whether the snapshots devices of zvol's are hidden or visible. The default value is \fBhidden\fR.
+.RE
+
+.sp
+.ne 2
+.mk
+.na
\fB\fBsnapdir\fR=\fBhidden\fR | \fBvisible\fR\fR
.ad
.sp .6
.SS "ZFS Volumes as Swap"
.sp
.LP
-Do not swap to a file on a \fBZFS\fR file system. A \fBZFS\fR swap file configuration is not supported.
+\fBZFS\fR volumes may be used as Linux swap devices. After creating the volume
+with the \fBzfs create\fR command set up and enable the swap area using the
+\fBmkswap\fR(8) and \fBswapon\fR(8) commands. Do not swap to a file on a
+\fBZFS\fR file system. A \fBZFS\fR swap file configuration is not supported.
.SH SUBCOMMANDS
.sp
.LP
.ne 2
.mk
.na
-\fB\fBzfs userspace\fR [\fB-niHp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-sS\fR \fIfield\fR]... [\fB-t\fR \fItype\fR [,...]] \fIfilesystem\fR | \fIsnapshot\fR\fR
+\fBzfs\fR \fBuserspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]]
+[\fB-s\fR \fIfield\fR] ...
+[\fB-S\fR \fIfield\fR] ...
+[\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
.ad
.sp .6
.RS 4n
-Displays space consumed by, and quotas on, each user in the specified filesystem or snapshot. This corresponds to the \fBuserused@\fR\fIuser\fR and \fBuserquota@\fR\fIuser\fR properties.
+Displays space consumed by, and quotas on, each user in the specified
+filesystem or snapshot. This corresponds to the \fBuserused@\fR\fIuser\fR and
+\fBuserquota@\fR\fIuser\fR properties.
.sp
.ne 2
.mk
.ad
.sp .6
.RS 4n
-Use exact (parseable) numeric output.
+Use exact (parsable) numeric output.
.RE
.sp
.ad
.sp .6
.RS 4n
-Display only the specified fields from the following set, \fBtype,name,used,quota\fR.The default is to display all fields.
+Display only the specified fields from the following
+set: \fBtype, name, used, quota\fR. The default is to display all fields.
.RE
.sp
.ad
.sp .6
.RS 4n
-Sort output by this field. The \fIs\fR and \fIS\fR flags may be specified multiple times to sort first by one field, then by another. The default is \fB-s type\fR \fB-s name\fR.
+Sort output by this field. The \fIs\fR and \fIS\fR flags may be specified
+multiple times to sort first by one field, then by another. The default is
+\fB-s type\fR \fB-s name\fR.
.RE
.sp
.ad
.sp .6
.RS 4n
-Print only the specified types from the following set, \fBall,posixuser,smbuser,posixgroup,smbgroup\fR.
-.sp
-The default is \fB-t posixuser,smbuser\fR
-.sp
-The default can be changed to include group types.
+Print only the specified types from the following
+set: \fBall, posixuser, smbuser, posixgroup, smbgroup\fR. The default
+is \fB-t posixuser,smbuser\fR. The default can be changed to include group
+types.
.RE
.sp
.ad
.sp .6
.RS 4n
-Translate SID to POSIX ID. The POSIX ID may be ephemeral if no mapping exists. Normal POSIX interfaces (for example, \fBstat\fR(2), \fBls\fR \fB-l\fR) perform this translation, so the \fB-i\fR option allows the output from \fBzfs userspace\fR to be compared directly with those utilities. However, \fB-i\fR may lead to confusion if some files were created by an SMB user before a SMB-to-POSIX name mapping was established. In such a case, some files are owned by the SMB entity and some by the POSIX entity. However, the \fB-i\fR option will report that the POSIX entity has the total usage and quota for both.
+Translate SID to POSIX ID. The POSIX ID may be ephemeral if no mapping exists.
+Normal POSIX interfaces (for example, \fBstat\fR(2), \fBls\fR \fB-l\fR) perform
+this translation, so the \fB-i\fR option allows the output from \fBzfs
+userspace\fR to be compared directly with those utilities. However, \fB-i\fR
+may lead to confusion if some files were created by an SMB user before a
+SMB-to-POSIX name mapping was established. In such a case, some files will be owned
+by the SMB entity and some by the POSIX entity. However, the \fB-i\fR option
+will report that the POSIX entity has the total usage and quota for both.
.RE
.RE
.ne 2
.mk
.na
-\fB\fBzfs groupspace\fR [\fB-niHp\fR] [\fB-o\fR \fIfield\fR[,...]] [\fB-sS\fR \fIfield\fR]... [\fB-t\fR \fItype\fR [,...]] \fIfilesystem\fR | \fIsnapshot\fR\fR
+\fBzfs\fR \fBgroupspace\fR [\fB-Hinp\fR] [\fB-o\fR \fIfield\fR[,...]]
+[\fB-s\fR \fIfield\fR] ...
+[\fB-S\fR \fIfield\fR] ...
+[\fB-t\fR \fItype\fR[,...]] \fIfilesystem\fR|\fIsnapshot\fR
.ad
.sp .6
.RS 4n
-Displays space consumed by, and quotas on, each group in the specified filesystem or snapshot. This subcommand is identical to \fBzfs userspace\fR, except that the default types to display are \fB-t posixgroup,smbgroup\fR.
-.sp
-.in +2
-.nf
--
-.fi
-.in -2
-.sp
-
+Displays space consumed by, and quotas on, each group in the specified
+filesystem or snapshot. This subcommand is identical to \fBzfs userspace\fR,
+except that the default types to display are \fB-t posixgroup,smbgroup\fR.
.RE
.sp
.ad
.sp .6
.RS 4n
-An optional, comma-separated list of mount options to use temporarily for the duration of the mount. See the "Temporary Mount Point Properties" section for details.
+An optional, comma-separated list of mount options to use temporarily for the
+duration of the mount. See the "Temporary Mount Point Properties" section for
+details.
.RE
.sp
.ad
.sp .6
.RS 4n
-Mount all available \fBZFS\fR file systems. Invoked automatically as part of the boot process.
+Mount all available \fBZFS\fR file systems. Invoked automatically as part of
+the boot process.
.RE
.sp
# \fBzfs destroy -r pool/users@7daysago\fR
# \fBzfs rename -r pool/users@6daysago @7daysago\fR
# \fBzfs rename -r pool/users@5daysago @6daysago\fR
-# \fBzfs rename -r pool/users@yesterday @5daysago\fR
-# \fBzfs rename -r pool/users@yesterday @4daysago\fR
-# \fBzfs rename -r pool/users@yesterday @3daysago\fR
+# \fBzfs rename -r pool/users@4daysago @5daysago\fR
+# \fBzfs rename -r pool/users@3daysago @4daysago\fR
+# \fBzfs rename -r pool/users@2daysago @3daysago\fR
# \fBzfs rename -r pool/users@yesterday @2daysago\fR
# \fBzfs rename -r pool/users@today @yesterday\fR
# \fBzfs snapshot -r pool/users@today\fR
git://git.camperquake.de / zfs.git / blobdiff