ChangeLog

   1 Please see git logs for detailed change log.
   2 This file just contains highlight.
   3
   4 Changes Prior to release 3.1.4
   5   Two fixes related to configs that aren't using udev:
   6    -    Don't remove md devices which 'standard' names on --stop
   7    -    Allow dev_open to work on read-only /dev
   8   And fixed regressions:
   9    -    Allow --incremental to add spares to an array
  10    -    Accept --no-degraded as a deprecated option rather than
  11             throwing an error
  12    -    Return correct success status when --incrmental assembling
  13         a container which does not yet have enough devices.
  14    -    Don't link mdadm with pthreads, only mdmon needs it.
  15    -    Fix compiler warning due to bad use of snprintf
  16
  17 Changes Prior to release 3.1.3
  18    -    mapfile now lives in a fixed location which default to
  19         /dev/.mdadm/map but can be changed at compile time.  This
  20         location is choses and most distros provide it during early
  21         boot and preserve it through.  As long a /dev exists and is
  22         writable, /dev/.mdadm will be created.
  23         Other files file communication with mdmon live here too.
  24         This fixes a bug reported by Debian and Gentoo users where
  25         udev would spin in early-boot.
  26    -    IMSM and DDF metadata will not be recognised on partitions
  27         as they should only be used on whole-disks.
  28    -    Various overflows causes by 2G drives have been addressed.
  29    -    A subarray of an IMSM contain can now be killed with
  30         --kill-subarray.  Also subarrays can be renamed with
  31         --update-subarray
  32    -    -If (or --incremental --fail) can be used  from udev to
  33         fail and remove from all arrays a device which has been
  34         unplugged from the system.  i.e. hot-unplug-support.
  35    -    "mdadm /dev/mdX --re-add missing" will look for any device
  36         that looks like it should be a member of /dev/mdX but isn't
  37         and will automatically --re-add it
  38    -    Now compile with -Wextra to get extra warnings.
  39    -    Lots of minor bug fixes, documentation improvements, etcc
  40
  41 Changes Prior to release 3.1.2
  42    -    The default metadata has change again (sorry about that).
  43         It is now v1.2 and will hopefully stay that way.  It turned
  44         out there with boot-block issues with v1.1 which make it
  45         unsuitable for a default, though in many cases it is still
  46         suitable to use.
  47    -    Stopping a container is not permitted when members are still
  48         active
  49    -    Add 'homehost' to the valid words for the "AUTO" config file
  50         line.  When followed by "-all", this causes mdadm to
  51         auto-assemble any array belonging to this host, but not
  52         auto-assemble anything else.
  53    -    Fix some bugs with "--grow --chunksize=" for changing chunksize.
  54    -    VAR_RUN can be easily changed at compile time just like ALT_RUN.
  55         This gives distros more flexability in how to manage the
  56         pid and sock files that mdmon needs.
  57    -    Various mdmon fixes
  58    -    Alway make bitmap 4K-aligned if at all possible.
  59    -    If mdadm.conf lists arrays which have inter-dependencies,
  60         the previously had to be listed in the "right" order.  Now
  61         any order should work.
  62    -    Fix --force assembly of v1.x arrays which are in the process
  63         of recovering.
  64    -    Add section on 'scrubbing' to 'md' man page.
  65    -    Various command-line-option parsing improvements.
  66    -    ... and lots of other bug fixes.
  67
  68 Changes Prior to release 3.1.1
  69    -    Multiple fixes for new --grow levels including fixes for
  70         serious data corruption problems.
  71    -    Change default metadata to v1.1
  72    -    Change default chunk size to 512K
  73    -    Change default bitmap chunk size to 64Meg
  74    -    When --re-add is used, don't fall back to
  75         --add if --re-add fails as this can destroy data.
  76
  77 Changes Prior to release 3.1
  78    -    Support --grow to change the layout of RAID4/5/6
  79    -    Support --grow to change the chunksize of raid 4/5/6
  80    -    Support --grow to change level from RAID1 -> RAID5 -> RAID6 and
  81         back.
  82    -    Support --grow to reduce the number of devices in RAID4/5/6.
  83    -    Support restart of these grow options which assembling an array
  84         which is partially grown.
  85    -    Assorted tests of this code, and of different RAID6 layouts.
  86
  87 Changes Prior to release 3.0.3
  88    -    Improvements for creating arrays giving just a name, like 'foo',
  89         rather than the full '/dev/md/foo'.
  90    -    Improvements for assembling member arrays of containers.
  91    -    Improvements to test suite
  92    -    Add option to change increment for RebuildNN messages reported
  93         by "mdadm --monitor"
  94    -    Improvements to mdmon 'hand-over' from initrd to final root.
  95    -    Handle merging of devices that have left an IMSM array and are
  96         being re-incorporated.
  97    -    Add missing space in "--detail --brief" output.
  98
  99 Changes Prior to release 3.0.2
 100    -    Fix crash when hosthost is not set, as often happens in
 101         early boot.
 102
 103 Changes Prior to release 3.0.1
 104    -    Fix various segfaults
 105    -    Fixed for --examine with containers
 106    -    Lots of other little fixes.
 107
 108 Changes Prior to release 3.0
 109    -    Support for externally managed metadata, specifically DDF and IMSM.
 110    -    Depend on udev to create entries in /dev, rather than creating them
 111         ourselves.
 112    -    remove --auto-update-home-hosts
 113    -    new config file line "auto"
 114    -    new "<ignore>" and "any" options for "homehost"
 115    -    numerous bug fixes and minor enhancements.