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This is useful with 1.1 and 1.2 metadata to update the metadata if
the device size has changed.
The same functionality can be achieved by writing to the device size
in sysfs after re-adding normally, but in some cases this might be
easier.
Signed-off-by: NeilBrown <neilb@suse.de>
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Conflicts:
mdadm.8.in
Same conceptual change was written with different words in each version.
Signed-off-by: NeilBrown <neilb@suse.de>
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- other differences between 0.90 and 1.x metadata explained
- reshape text enhanced to properly acknowledge shrinks and in-place
reshapes, particularly in the context of --backup-file.
Signed-off-by: NeilBrown <neilb@suse.de>
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Though not having the proper backup file can cause data corruption, it
is not enough to justify not being able to start the array at all.
So allow "--invalid-backup" to be specified which says "just continue
even if a backup cannot be restored".
Signed-off-by: NeilBrown <neilb@suse.de>
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This allows an array with a corrupt internal bitmap to be assembled
without the bitmap.
Signed-off-by: NeilBrown <neilb@suse.de>
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We already allow K,M,G suffixes for --size and --array-size.
Allow it for --chunk and --bitmap-chunk as well.
Also add this info to man page, and remove the duplication of info
about --array-size.
Signed-off-by: NeilBrown <neilb@suse.de>
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bugfix/stability.
Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: NeilBrown <neilb@suse.de>
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and add the fact that --test can now be used with --manage
operations.
Signed-off-by: NeilBrown <neilb@suse.de>
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If the device name "missing" is given for --re-add, then mdadm will
attempt to find any device which should be a member of the array but
currently isn't and will --re-add it to the array.
This can be useful if a device disappeared due to a cabling problem,
and was then re-connected.
The appropriate sequence would be
mdadm /dev/mdX --fail detached
mdadm /dev/mdX --remove detached
mdadm /dev/mdX --re-add missing
Signed-off-by: NeilBrown <neilb@suse.de>
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This can be used for hot-unplug. When a device has been remove,
udev can call
mdadm --incremental --fail sda
and mdadm will find the array holding sda and remove sda from
the array.
Based on code from Doug Ledford <dledford@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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In some places it is referred to as "--rebuild", and while
that works due to getopt allowing prefixes, it could appear
confusing (rebuild means other things too) and being explicit
is some safeguard if we want to add e.g. --rebuild-foo later.
Reported-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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--level can be used with --grow now, so correct man page.
Reported-by: "Leslie Rhorer" <lrhorer@satx.rr.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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This commit introduces DEFAULT_OLD_METADATA as a preprocessor
definition. If defined, it causes mdadm to assume metadata version 0.9
as default. If not defined, version 1.x (currently 1.2) is used as
default.
The man page mdadm.8 is also modified to reflect the chosen default.
The selftests will not work if the old default is chosen.
This patch was requested by Debian so they could distribute a current
mdadm together with boot loaders that only understand 0.90 metadata
for md-raid.
Preferred usage is simply
make DEFAULT_OLD_METADATA=yes
Signed-off-by: martin f. krafft <madduck@debian.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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