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authorNeilBrown <neilb@suse.de>2006-01-06 00:20:50 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 08:34:08 -0800
commit8bb93aaca2062cd54cc2c58c76ee8409cae209a7 (patch)
tree12efef0262795f4d4462c8ac8e0fd6e2117ee81a /Documentation/md.txt
parenta35b0d695d44410eb1734c9abb632725a3138628 (diff)
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[PATCH] md: expose md metadata format in sysfs
Allow it to be set to a particular version, or 'none'. 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>
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diff --git a/Documentation/md.txt b/Documentation/md.txt
index 0a2e10a4040d..c5512afd5917 100644
--- a/Documentation/md.txt
+++ b/Documentation/md.txt
@@ -183,6 +183,12 @@ All md devices contain:
the array if the personality supports it (raid1, raid5, raid6),
and if the component drives are large enough.
+ metadata_version
+ This indicates the format that is being used to record metadata
+ about the array. It can be 0.90 (traditional format), 1.0, 1.1,
+ 1.2 (newer format in varying locations) or "none" indicating that
+ the kernel isn't managing metadata at all.
+
As component devices are added to an md array, they appear in the 'md'
directory as new directories named
dev-XXX