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This feature allows copying existing bookmarks using
zfs bookmark fs#target fs#newbookmark
There are some niche use cases for such functionality,
e.g. when using bookmarks as markers for replication progress.
Copying redaction bookmarks produces a normal bookmark that
cannot be used for redacted send (we are not duplicating
the redaction object).
ZCP support for bookmarking (both creation and copying) will be
implemented in a separate patch based on this work.
Overview:
- Terminology:
- source = existing snapshot or bookmark
- new/bmark = new bookmark
- Implement bookmark copying in `dsl_bookmark.c`
- create new bookmark node
- copy source's `zbn_phys` to new's `zbn_phys`
- zero-out redaction object id in copy
- Extend existing bookmark ioctl nvlist schema to accept
bookmarks as sources
- => `dsl_bookmark_create_nvl_validate` is authoritative
- use `dsl_dataset_is_before` check for both snapshot
and bookmark sources
- Adjust CLI
- refactor shortname expansion logic in `zfs_do_bookmark`
- Update man pages
- warn about redaction bookmark handling
- Add test cases
- CLI
- pyyzfs libzfs_core bindings
Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #9571
70 lines
2.2 KiB
Groff
70 lines
2.2 KiB
Groff
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.\" CDDL HEADER END
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.\"
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.\" Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
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.\" Copyright 2011 Joshua M. Clulow <josh@sysmgr.org>
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.\" Copyright (c) 2011, 2019 by Delphix. All rights reserved.
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.\" Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
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.\" Copyright (c) 2014, Joyent, Inc. All rights reserved.
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.\" Copyright (c) 2014 by Adam Stevko. All rights reserved.
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.\" Copyright (c) 2014 Integros [integros.com]
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.\" Copyright 2019 Richard Laager. All rights reserved.
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.\" Copyright 2018 Nexenta Systems, Inc.
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.\" Copyright 2019 Joyent, Inc.
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.\" Copyright (c) 2019, 2020 by Christian Schwarz. All Rights Reserved.
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.Dd June 30, 2019
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.Dt ZFS-BOOKMARK 8 SMM
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.Os Linux
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.Sh NAME
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.Nm zfs Ns Pf - Cm bookmark
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.Nd Creates a bookmark of the given snapshot.
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.Sh SYNOPSIS
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.Sh DESCRIPTION
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.Bl -tag -width ""
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.It Xo
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.Nm
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.Cm bookmark
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.Ar snapshot Ns | Ns Ar bookmark newbookmark
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.Xc
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Creates a new bookmark of the given snapshot or bookmark.
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Bookmarks mark the point in time when the snapshot was created, and can be used
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as the incremental source for a
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.Xr zfs-send 8
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command.
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.Pp
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When creating a bookmark from an existing redaction bookmark, the resulting
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bookmark is
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.Sy not
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a redaction bookmark.
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.Pp
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This feature must be enabled to be used.
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See
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.Xr zpool-features 5
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for details on ZFS feature flags and the
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.Sy bookmarks
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feature.
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.El
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.Sh SEE ALSO
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.Xr zfs-destroy 8 ,
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.Xr zfs-send 8 ,
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.Xr zfs-snapshot 8
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