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.\"
.\" 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) 2020 by Delphix. All rights reserved.
.Dd March 25, 2020
.Dt ZSTREAM 8
.Os
.Sh NAME
.Nm zstream
.Nd manipulate zfs send streams
.Sh SYNOPSIS
.Nm
.Cm dump
.Op Fl Cvd
.Op Ar file
.Nm
.Cm redup
.Op Fl v
.Ar file
.Nm
.Cm token
.Ar resume_token
.Sh DESCRIPTION
.sp
The
.Sy zstream
utility manipulates zfs send streams, which are the output of the
.Sy zfs send
command.
.Bl -tag -width ""
.It Xo
.Nm
.Cm dump
.Op Fl Cvd
.Op Ar file
.Xc
Print information about the specified send stream, including headers and
record counts.
The send stream may either be in the specified
.Ar file ,
or provided on standard input.
.Bl -tag -width "-D"
.It Fl C
Suppress the validation of checksums.
.It Fl v
Verbose.
Print metadata for each record.
.It Fl d
Dump data contained in each record.
Implies verbose.
.El
.It Xo
.Nm
.Cm token
.Ar resume_token
.Xc
Dumps zfs resume token information
.It Xo
.Nm
.Cm redup
.Op Fl v
.Ar file
.Xc
Deduplicated send streams can be generated by using the
.Nm zfs Cm send Fl D
command.
The ability to send deduplicated send streams is deprecated.
In the future, the ability to receive a deduplicated send stream with
.Nm zfs Cm receive
will be removed.
However, deduplicated send streams can still be received by utilizing
.Nm zstream Cm redup .
.Pp
The
.Nm zstream Cm redup
command is provided a
.Ar file
containing a deduplicated send stream, and outputs an equivalent
non-deduplicated send stream on standard output.
Therefore, a deduplicated send stream can be received by running:
.Bd -literal
# zstream redup DEDUP_STREAM_FILE | zfs receive ...
.Ed
.Bl -tag -width "-D"
.It Fl v
Verbose.
Print summary of converted records.
.El
.El
.Sh SEE ALSO
.Xr zfs 8 ,
.Xr zfs-send 8 ,
.Xr zfs-receive 8
|
