Release mdadm-3.2 - developer only release
Signed-off-by: NeilBrown <neilb@suse.de>
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NeilBrown
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Subject: ANNOUNCE: mdadm 3.2 - A tool for managing Soft RAID under Linux (DEVEL ONLY)
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I am pleased to announce the availability of
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mdadm version 3.2
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It is available at the usual places:
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countrycode=xx.
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http://www.${countrycode}kernel.org/pub/linux/utils/raid/mdadm/
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and via git at
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git://neil.brown.name/mdadm devel-3.2
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http://neil.brown.name/git?p=mdadm
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This is a "Developers only" release. Please don't consider using it
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or making it available to others without reading the following.
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By far the most significant change in this release related to the
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management of reshaping arrays. This code has been substantially
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re-written so that it can work with 'externally managed metadata' -
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Intel's IMSM in particular. We now support level migration and
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OnLine Capacity Expansion on these arrays.
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However, while the code largely works it has not been tested
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exhaustively so there are likely to be problems. As the reshape code
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for native metadata arrays was changed as part of this rewrite these
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problems could also result in regressions for reshape of native
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metadata.
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It is partly to encourage greater testing that this release is being
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made. Any reports of problem - particular reproducible recipes for
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triggering the problems - will be gratefully received.
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It is hopped that a "3.2.1" release will be available in early March
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which will be a bugfix release over this and can be considered
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suitable for general use.
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Other changes of note:
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- Policy framework.
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Various policy statements can be made in the mdadm.conf to guide
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the behaviour of mdadm, particular with regards to how new devices
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are treated by "mdadm -I".
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Depending on the 'action' associated with a device (identified by
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its 'path') such need devices can be automatically re-added to and
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existing array that they previously fell out off, or automatically
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added as a spare if they appear to contain no data.
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- mdadm now has a limited understanding of partition tables. This
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allows the policy framework to make decisions about partitioned
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devices as well.
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- --incremental --remove can be told what --path the device was on,
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and this info will be recorded so that another device appearing at
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the same physical location can be preferentially added to the same
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array (provides the spare-same-slot action policy applied to the
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path).
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- A new flags "--invalid-backup" flag is available in --assemble
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mode. This can be used to re-assemble an array which was stopping
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in the middle of a reshape, and for which the 'backup file' is no
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longer available or is corrupted. The array may have some
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corruption in it at the point where reshape was up to, but at least
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the rest of the array will become available.
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- Various internal restructuring - more is needed.
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Any feed back and bug reports are always welcomed at:
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linux-raid@vger.kernel.org
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And please: don't use this in production - particularly not the
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--grow functionality.
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NeilBrown 1st February 2011
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2
ReadMe.c
2
ReadMe.c
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@ -24,7 +24,7 @@
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#include "mdadm.h"
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char Version[] = Name " - v3.2-devel - 23rd November 2010\n";
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char Version[] = Name " - v3.2 DEVELOPER_ONLY - 1st February 2011 (USE WITH CARE)\n";
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/*
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* File: ReadMe.c
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49
inventory
49
inventory
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@ -8,6 +8,7 @@ ANNOUNCE-3.1.1
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ANNOUNCE-3.1.2
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ANNOUNCE-3.1.3
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ANNOUNCE-3.1.4
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ANNOUNCE-3.2
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Assemble.c
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bitmap.c
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bitmap.h
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@ -22,6 +23,7 @@ Detail.c
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dlink.c
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dlink.h
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Examine.c
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external-reshape-design.txt
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.gitignore
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Grow.c
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Incremental.c
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@ -50,6 +52,7 @@ mdassemble.8
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mdassemble.c
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mdmon.8
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mdmon.c
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mdmon-design.txt
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mdmon.h
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mdopen.c
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md_p.h
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@ -62,8 +65,10 @@ monitor.c
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Monitor.c
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msg.c
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msg.h
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part.h
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platform-intel.c
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platform-intel.h
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policy.c
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probe_roms.c
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probe_roms.h
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pwgr.c
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@ -78,7 +83,9 @@ sha1.h
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super0.c
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super1.c
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super-ddf.c
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super-gpt.c
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super-intel.c
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super-mbr.c
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swap_super.c
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sysfs.c
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test
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@ -135,12 +142,48 @@ tests/08imsm-overlap
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tests/09imsm-assemble
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tests/09imsm-create-fail-rebuild
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tests/10ddf-create
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tests/11spare-migration
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tests/12imsm-r0_2d-grow-r0_3d
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tests/12imsm-r0_2d-grow-r0_4d
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tests/12imsm-r0_2d-grow-r0_5d
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tests/12imsm-r0_3d-grow-r0_4d
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tests/12imsm-r5_3d-grow-r5_4d
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tests/12imsm-r5_3d-grow-r5_5d
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tests/13imsm-r0_r0_2d-grow-r0_r0_4d
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tests/13imsm-r0_r0_2d-grow-r0_r0_5d
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tests/13imsm-r0_r0_3d-grow-r0_r0_4d
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tests/13imsm-r0_r5_3d-grow-r0_r5_4d
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tests/13imsm-r0_r5_3d-grow-r0_r5_5d
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tests/13imsm-r5_r0_3d-grow-r5_r0_4d
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tests/13imsm-r5_r0_3d-grow-r5_r0_5d
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tests/14imsm-r0_3d_no_spares-migrate-r5_3d
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tests/14imsm-r0_3d-r5_3d-migrate-r5_4d-r5_4d
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tests/14imsm-r0_r0_2d-takeover-r10_4d
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tests/14imsm-r10_4d-grow-r10_5d
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tests/14imsm-r10_r5_4d-takeover-r0_2d
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tests/14imsm-r1_2d-grow-r1_3d
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tests/14imsm-r1_2d-takeover-r0_2d
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tests/14imsm-r5_3d-grow-r5_5d-no-spares
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tests/14imsm-r5_3d-migrate-r4_3d
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tests/15imsm-r0_3d_64k-migrate-r0_3d_256k
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tests/15imsm-r5_3d_4k-migrate-r5_3d_256k
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tests/15imsm-r5_3d_64k-migrate-r5_3d_256k
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tests/15imsm-r5_6d_4k-migrate-r5_6d_256k
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tests/15imsm-r5_r0_3d_64k-migrate-r5_r0_3d_256k
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tests/16imsm-r0_3d-migrate-r5_4d
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tests/16imsm-r0_5d-migrate-r5_6d
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tests/16imsm-r5_3d-migrate-r0_3d
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tests/16imsm-r5_5d-migrate-r0_5d
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tests/18imsm-1d-takeover-r0_1d
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tests/18imsm-1d-takeover-r1_2d
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tests/18imsm-r0_2d-takeover-r10_4d
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tests/18imsm-r10_4d-takeover-r0_2d
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tests/check
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tests/env-08imsm-overlap
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tests/env-09imsm-assemble
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tests/env-09imsm-create-fail-rebuild
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tests/env-imsm-template
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tests/imsm-grow-template
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tests/testdev
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tests/ToTest
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tests/utils
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TODO
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udev-md-raid.rules
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util.c
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@ -5,7 +5,7 @@
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.\" the Free Software Foundation; either version 2 of the License, or
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.\" (at your option) any later version.
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.\" See file COPYING in distribution for details.
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.TH MDADM 8 "" v3.1.4
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.TH MDADM 8 "" v3.2
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.SH NAME
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mdadm \- manage MD devices
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.I aka
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@ -1,6 +1,6 @@
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Summary: mdadm is used for controlling Linux md devices (aka RAID arrays)
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Name: mdadm
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Version: 3.1.4
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Version: 3.2
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Release: 1
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Source: http://www.kernel.org/pub/linux/utils/raid/mdadm/mdadm-%{version}.tgz
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URL: http://neil.brown.name/blog/mdadm
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@ -1,5 +1,5 @@
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.\" -*- nroff -*-
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.TH MDASSEMBLE 8 "" v3.1.4
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.TH MDASSEMBLE 8 "" v3.2
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.SH NAME
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mdassemble \- assemble MD devices
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.I aka
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