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ANNOUNCE-1.0.0
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Subject: ANNOUNCE: mdadm 1.0.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.0.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
as both a source tar-ball, as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
mdadm incorporates much of the functionality of raidtools, though with
a very different interface, and also provides extra functionality
including:
- monitoring array and alerting admin staff of issues
- moving spares between arrays as needed
- assembling arrays based on superblock content
- displaying details of arrays and of superblocks
The release of version 1 is intended to suggest that mdadm is
- feature-complete
- reasonably bug-free
- reasonably well documented.
I hope not to make another release until md driver enhancements
necessitate it, but we will have to wait and see....
Note: mdadm was previously known as 'mdctl'. It is the same tool,
just a different name.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 10may2002

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ANNOUNCE-1.1.0
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Subject: ANNOUNCE: mdadm 1.1.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.1.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.1.0 contains a number of spell corrections, and bug fixes.
It has improved support for MULTIPATH arrays.
It has some new features including:
--daemonise for use with --monitor
--config=partitions to find devices by examining /proc/partitions
--update=super-minor to change the recorded minor-number for an array
Much of the improvements are due to user feed-back. Thanks are due to all who
gave suggestions and reported problems.
I expect the next major release to be 2.0.0 which will include support for
a new super-block format soon to be supported by 2.5 series kernels.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 03/03/03
The third day
of the third month
of the third year
of the third millenium

31
ANNOUNCE-1.10.0
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Subject: ANNOUNCE: mdadm 1.10.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.10.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.9.0 adds:
- Fix bug with --config=partitions
- Open sub-devices with O_EXCL to detect if already in use
- Make sure superblock updates are flushed directly to disk.
The first update is the most significant ("mdadm -Escpartitions" would crash).
The others are mildly useful extras.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 04 April 2005

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ANNOUNCE-1.11.0
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Subject: ANNOUNCE: mdadm 1.11.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.11.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.11.0 adds:
- Fix embarrasing bug in 1.10.0 which causes --add to always fail.
thanks to Dave Jiang <djiang at mvista dot com> for reporting it.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 11 April 2005

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ANNOUNCE-1.2.0
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Subject: ANNOUNCE: mdadm 1.2.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.2.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.2.0 is a bug-fix release over 1.1.0.
- Fix bug where --daemonise required an argument.
- In --assemble --verbose, print appropriate message if device is
not in devices= list
- Updated mdadm.conf.5 to reflect fact that device= takes wildcards
- Typos: componenet -> component
- Reduce size of "--help" message put excess into "--help-options"
- Fix bug introduced when MD_SB_DISKS dependancy removed, and which
caused spares not be assembled properly.
- Print appropriate message if --monitor --scan decides not to
monitor anything.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 13/03/03

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ANNOUNCE-1.3.0
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Subject: ANNOUNCE: mdadm 1.3.0 - A tools for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.3.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.3.0 is a bug-fix and minor feature update release over 1.2.0.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 29 Jul 2003

29
ANNOUNCE-1.4.0
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Subject: ANNOUNCE: mdadm 1.4.0 - A tools for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.4.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.4.0 adds:
SparesMissing event in --monitor mode if a number of spares is declared
in mdadm.conf, but that number of spares isn't found.
--update=summaries option for --assemble mode to update some summary information
in the superblock
--test option for --detail to get a useful exit status.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 29 Oct 2003

29
ANNOUNCE-1.5.0
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Subject: ANNOUNCE: mdadm 1.5.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.5.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.5.0 adds:
- new command "mdassemble" for use in initrd/initramfs.
- raid6 support (for 2.6.2 and later kernels)
- RebuildFinished event in monitor mode.
- include rebuild status in --detail output.
- fixes for assorted compilation problems
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 22 Jan 2004

36
ANNOUNCE-1.6.0
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Subject: ANNOUNCE: mdadm 1.6.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.6.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.6.0 adds:
- --grow which (in 2.6.7-rc1-mm1 and hopefully 2.6.8) allows raid1/4/5/6
arrays to change the active size of the underlying devices, and allows
raid1 arrays to change the number of active drives.
- Allows --build to buld raid1 and multipath arrays.
- adds "degraded" and "recovering" as possibilities for the status line
in --detail
- fixes a bug in 1.5.0 which stopped resync status messages from being
generated in --monitor mode
- Further support for partitionable arrays included "--auto=" option
and "auto=" config file entry which instructs mdadm to create the necessary
device files after allocating an unused array number.
- assorted minor fixes and improvements.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 4 Jun 2004

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ANNOUNCE-1.7.0
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Subject: ANNOUNCE: mdadm 1.7.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.7.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.7.0 adds:
- Support "--grow --add" to add a device to a linear array, if the
kernel supports it. Not documented yet.
- Restore support for uclibc which was broken recently.
- Several improvements to the output of --detail, including
reporting "resyncing" or "recovering" in the state.
- Close filedescriptor at end of --detail (exit would have closed it
anyway, so this isn't abig deal).
- Report "Sync checkpoint" in --examine output if appropriate.
- Add --update=resync for --assemble mode to for a resync when the
array is assembled.
- Add support for "raid10", which is under development in 2.6.
Not documented yet.
- --monitor now reads spare-group and spares info from config file
even when names of arrays to scan are given on the command line
It is expected that the next full release of mdadm will be 2.0.0
and it will have substantially re-written handling for superblocks and
array creation. In particular, it will be able to work with the new
superblock format (version 1) supported by 2.6.
Prior to that, some point releases (1.7.1, 1.7.2 ...) may be released
so that the changes can be tested by interrested parties.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 11 August 2004

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ANNOUNCE-1.8.0
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Subject: ANNOUNCE: mdadm 1.8.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.8.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.8.0 adds:
- --pid-file option to declare a file to record the pid in for
--monitor --daemonise
- Support for new "faulty" personalitiy (see md.4) - not submited to
kernel.org yet.
- support for raid0 and linear over devices larger than 2 Terabytes.
- assorted bug fixes.
It is hoped that the next full release of mdadm will be 2.0.0
and it will have substantially re-written handling for superblocks and
array creation. In particular, it will be able to work with the new
superblock format (version 1) supported by 2.6.
1.8.1 may be released soon which contains much of this functionality.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 01 November 2004

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ANNOUNCE-1.8.1
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Subject: ANNOUNCE: mdadm 1.8.1 - A tool for managing Soft RAID under Linux - DEVELOPMENT version
I am pleased to announce the availability of
mdadm version 1.8.1
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
This is a "development" release of mdadm. It should *not* be
considered stable and should be used primarily for testing.
The current "stable" version is 1.8.0.
Release 1.8.1 supports different styles of superblocks (aka RAID metadata).
Two formats are currently supported
version 0.90.0 - the traditional Linux RAID superblock
version 1 - a new superblock which less useless information and some more
flexability.
Version 1 supports more than 28 devices in an array, and RAID1 and greater over
devices larger than 2TB (though a 2TB RAID1 would take forever to resync!).
mdadm 1.8.1 takes a different approach to creating arrays than
previous versions, though this is largely transparent. Instead of
giving the devices to the kernel and letting it "create" the array and
write out initial superblocks, mdadm 1.8.1 writes out the initial
superblocks itself, thus creating the array, and then asks the kernel
to assemble that array.
Version 1 superblocks requires 2.6.10 or a recent 2.6.10-rc snapshot.
Enhancements that are expected before this becomes 2.0.0:
- mdassemble currently doesn't compile
- version 1 superblocks have room for a label, which currently isn't used.
Setting the label, and assembling arrays by label will be supported.
A label like "$HOSTNAME-root" could be the standard label for the device
containing the root filesystem for $HOSTNAME.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 05 November 2004

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ANNOUNCE-1.9.0
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Subject: ANNOUNCE: mdadm 1.9.0 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 1.9.0
It is available at
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
as a source tar-ball and (at the first site) as an SRPM, and as an RPM for i386.
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 1.9.0 adds:
- Fix rpm build problem (stray %)
- Minor manpage updates
- Change "dirty" status to "active" as it was confusing people.
- --assemble --auto recognises 'standard' name and insists on using
the appropriate major/minor number for them.
- Remove underscore from partition names, so partitions of
"foo" are "foo1", "foo2" etc (unchanged) and partitions of
"f00" are "f00p1", "f00p2" etc rather than "f00_p1"...
- Use "major", "minor", "makedev" macros instead of
"MAJOR", "MINOR", "MKDEV" so that large device numbers work
on 2.6 (providing you have glibc 2.3.3 or later).
- Add some missing closes of open file descriptors.
- Reread /proc/partition for every array assembled when using
it to find devices, rather than only once.
- Make "mdadm -Ss" stop stacked devices properly, by reversing the
order in which arrays are stopped.
- Improve some error messages.
- Allow device name to appear before first option, so e.g.
mdadm /dev/md0 -A /dev/sd[ab]
works.
- Assume '-Q' if just a device is given, rather than being silent.
This is based on 1.8.0 and *not* on 1.8.1 which was meant to be a pre-release
for the upcoming 2.0.0. The next prerelease will have a more obvious name.
Development of mdadm is sponsored by CSE@UNSW:
The School of Computer Science and Engineering
at
The University of New South Wales
NeilBrown 04 February 2005