Changes Prior to this release
+ - Support 'mailfrom' line in mdadm.conf so the From: line in alert
+ emails can be explicitly set.
+ - Arrange that SparesMissing (which is similar in import to
+ DegradedArray) generates an Email.
+ - Assume "DEVICE partitions" if no DEVICE line is given.
+ - Support new 'offset' layout for raid10.
+ - When creating a bitmap file, choose a chunksize to limit number
+ of bitmap chunks to 2 million. More than this can cause kmalloc
+ failure.
+ - New 'CREATE' line in mdadm.conf for defaults such as owner, group,
+ mode and auto-flag
+ - --detail checks if array has been started or not and includes that
+ in report.
+ - When using --update=uuid on an array with a bitmap, update the
+ bitmap's uuid too.
+ - Add a copy of /proc/mdstat to the mail message send by mdadm
+ --monitor.
+ - New flag --no-degraded to avoid starting arrays if there are
+ fewer devices available than last time the array was started.
+ This is only needed with --scan, as with --scan, that behaviour
+ is the default.
+
+Changes Prior to 2.4.1 release
+ - Honour --write-mostly when adding to an array without persistent
+ superblocks.
+ - Fix alignment problem in version-1 superblocks.
+ NOTE: This is an incompatable change affecting raid5 reshape.
+ If you want to reshape a raid5 using version-1 superblocks,
+ use 2.6.17-rc2 or later, and mdadm-2.4.1 or later.
+
+Changes Prior to 2.4 release
+ - Rewrite 'reshape' support including performing a backup
+ of the critical region for a raid5 growth, and restoring that
+ backup after a crash.
+ - Put a 'canary' at each end of the backup so a corruption
+ can be more easily detected.
+ - Remove useless 'ident' arguement from ->getinfo_super method.
+ - Support --backup-file for backing-up critical section during
+ growth.
+ - Erase old superblocks (of different versions) when creating new
+ array.
+ - Allow --monitor to work with arrays with >28 devices
+ - Report reshape information in --detail
+ - Handle symlinks in /dev better
+ - Fix mess in --detail output which a device is missing.
+ - Manpage tidyup
+ - Support 'bitmap=' in mdadm.conf for auto-assembling arrays with
+ write-intent bitmaps in separate files.
+ - Updates to md.4 man page including section on RESTRIPING and SYSFS
+
+Changes Prior to 2.3.1 release
+ - Fixed -O2 compile so I could make and RPM.
+ - Type cast number to be printed %llu so it compiles on 64bit
+ machines. (Thanks Luca).
+ - Stop using asm/byteorder.h - to make Redhat happy :-(
+ - Require bitmap files to have a '/' in their name.
+ - Error-check a few syscalls - code from SuSE package.
+
+Changes Prior to 2.3 release
- 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.
Changes Prior to 2.2 release
- Assorted bug fixes
- 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
+ - 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
+ - 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.
- 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
+ - 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.
+ 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
- Support "--monitor --test" which will generate a test alert
for each array once, to test notification paths.
- Generate RebuildFinished event when rebuild finishes.
- - Support for raid6 as found in 2.6.2 - thanks to
+ - Support for raid6 as found in 2.6.2 - thanks to
H. Peter Anvin <hpa@zytor.com>
- Support partitioned md arrays with a different major number and
naming scheme (md_dX in /proc/mdstat, /dev/md/dXpY in /dev).
- 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.
+ monitor anything.
Changes Prior to 1.1.0 release
- add --deamonise flag for --monitor - forks and prints pid to stdout
- Fix bug so we REALLY clear dirty flag with -Af
- "mdadm -A /dev/md0" will get info from configfile, even without scan
- When assembling multipath arrays, ignore devices which are flagged
as having errors.
- - take --super-minor=dev to mean "use the minor number of the mddev
+ - take --super-minor=dev to mean "use the minor number of the mddev
being assembled.
- take --config=none to mean "completely ignore config file"
- Make --monitor require --scan or a device list.
- Remove the limit on the number of device names that can be
given on the command line.
- - Fix bug in --assemble --force where it would only update a
+ - Fix bug in --assemble --force where it would only update a
single superblock.
- Fix bogus printing of big numbers not being block devices
when given names of devices that don't exist.
- When --assemble --force, consider superblocks with an event
count that is 1 behind as out-of-date. Normally they are
considered up-to-date (as the kernel assumes this too).
- - When marking drives as not-failed in the superblock,
+ - When marking drives as not-failed in the superblock,
we also mark them as ACTIVE and SYNC.
- Don't start arrays for which not all drives are available unless:
--scan which implies that all drives were found automatically
not started yet.
- man page update
- Taught Examine to handle --scan. It examines all devices listed
- on DEVICE lines in the config file.
+ on DEVICE lines in the config file.
- Added --brief (-b) flag for Examine and Detail to print out
and mdctl.conf compatible description with uuid=, level=,
disks= and - for Examine - devices=
- --examine --brief collects all devices the make the one array and
+ --examine --brief collects all devices the make the one array and
list them as one entry.
- Added level= and disks= options to ARRAY lines in config files
so --brief output could be used as-is.
superblock that says the minor number of the array is 4.
If the blocks with the right minor number do not all have the
same UUID, an error is flags and no assembly happens.
-
+
array /dev/md3 devices=/dev/hd[abc]2
Assembles /dev/md3 drom /dev/hda2 /dev/hdb2 and/dev/hdc2. All
array /dev/md2 devices=/dev/hd?2 super-minor=2
- will assemble /dev/md2 using all /dev/hd?2 devices which have a
+ will assemble /dev/md2 using all /dev/hd?2 devices which have a
raid superblock with minor number 2.
-
+
--create:
When listing devices for --create, the word "missing" can be
used to indicate that the respective slot does not have a
and drive listed for the last slot added as a spare. If a
"missing" slot is given, or if --force is given, then --create
does exactly what you ask and doesn't try to be clever.
-
+
--follow / --monitor:
This is a new mode. I couldn't stop my self from picking a name
starting with F (as current modes start A,B,C,D,E) but I
relented and provided an alternate name that is somewhat more
- meaningful.
-
+ meaningful.
+
In this mode, mdctl does not exit, but runs continuously and
periodically polls all the md devices to see if they have had
any interested state change.
Options:
--mail mailaddress - send Email on any Fail* event
- --program program - run the program on any event.
+ --program program - run the program on any event.
Args are: eventname mddevice subdevice(if-known)
--delay seconds - change from the default 60second pause
between polls.
There is now a man page and mdctl.spec (for rpm) thanks to
Danilo Godec <danci@agenda.si>.
-
+
Ofcourse, the man page is now out of date and despite being based on
the --help output, is not wholy correct. After I get --follow
working properly, I plan to revise the various documentation and/or
projects / thirdparty / mdadm.git / blobdiff