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authorNeilBrown <neilb@suse.de>2006-01-06 03:21:16 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 11:34:10 -0500
commit6d7ff7380b2e28c2807da3bf9fa614d91d15bacf (patch)
tree1f995a4f047a041c86b52efe0db221c76c7d0327 /Documentation
parent83303b613d00718b07ec0a4dee7c99aa66629d96 (diff)
[PATCH] md: support adding new devices to md arrays via sysfs
Writing major:minor to md/new_dev will bind that device to the array. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/md.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/md.txt b/Documentation/md.txt
index 7b3d471bb9f0..b8d172b254f7 100644
--- a/Documentation/md.txt
+++ b/Documentation/md.txt
@@ -200,6 +200,14 @@ All md devices contain:
200 This can be written only while the array is being assembled, not 200 This can be written only while the array is being assembled, not
201 after it is started. 201 after it is started.
202 202
203 new_dev
204 This file can be written but not read. The value written should
205 be a block device number as major:minor. e.g. 8:0
206 This will cause that device to be attached to the array, if it is
207 available. It will then appear at md/dev-XXX (depending on the
208 name of the device) and further configuration is then possible.
209
210
203As component devices are added to an md array, they appear in the 'md' 211As component devices are added to an md array, they appear in the 'md'
204directory as new directories named 212directory as new directories named
205 dev-XXX 213 dev-XXX