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Subject: ANNOUNCE: mdadm 2.3 - A tool for managing Soft RAID under Linux
I am pleased to announce the availability of
mdadm version 2.3
It is available at the usual places:
http://www.cse.unsw.edu.au/~neilb/source/mdadm/
and
http://www.{countrycode}.kernel.org/pub/linux/utils/raid/mdadm/
mdadm is a tool for creating, managing and monitoring
device arrays using the "md" driver in Linux, also
known as Software RAID arrays.
Release 2.3 fixes an assortment of bugs including the "--assemble --scan"
crash. It also makes mdadm better at handling very large arrays.
Finally, it adds some functionality to support some pending kernel
features such as raid5 reshaping.
Changelog Entries:
- Try /etc/mdadm/mdadm.conf if /etc/mdadm.conf doesn't exist.
This provided compatability for Debian.
- Fixed for version-1 superblock:
report chunksize for raid6 and raid10
make sure device size used is a multiple of chunksize
- Fix "--assemble --scan" crash.
- Fix completely failure to create array on ppc64
- Fix memcmp in place of memcpy
- A few minor improvements to online help
- Clean up usage of 'long long' for used-size of devices, so
that it is possible to create a raid1 of 7TB devices!
- Make internal bitmaps work on 7TB raid1 arrays.
- Provide error message if --examine doesn't find any superblock.
- Report 'reshape' status in --examine - this depends on kernel
patches that are not yet finalised.
- Report bitmap status in --detail and --examine
- Default to v1 superblocks instead of v0.90 if the array
is too big for 0.90 to handle.
- Sort the output of "mdadm --detail --scan" so that it is
in a suitable order for assembling arrays. i.e. components come
before an array that they are part of.
- Print size of large reiserfs array properly went warning of
possible confilcts.
Development of mdadm is sponsored by
SUSE Labs, Novell Inc.
NeilBrown 2nd February 2006
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