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| author | NeilBrown <neilb@suse.de> | 2006-01-06 00:20:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:34:09 -0800 |
| commit | 4dbcdc751cb25ffca3a8374cbc5ab6de961cc545 (patch) | |
| tree | 61d1eb6e35c0eec66e5a8610c1f57b1e6eec135c /Documentation/md.txt | |
| parent | d9d166c2a9d5d01af34396793950aa695883eed4 (diff) | |
| download | linux-3.10-4dbcdc751cb25ffca3a8374cbc5ab6de961cc545.tar.gz linux-3.10-4dbcdc751cb25ffca3a8374cbc5ab6de961cc545.tar.bz2 linux-3.10-4dbcdc751cb25ffca3a8374cbc5ab6de961cc545.zip | |
[PATCH] md: count corrected read errors per drive
Store this total in superblock (As appropriate), and make it available to
userspace via sysfs.
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/md.txt')
| -rw-r--r-- | Documentation/md.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/md.txt b/Documentation/md.txt index fd43fd2cad2..a3eadf8e170 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -222,6 +222,17 @@ Each directory contains: of being recoverred to This list make grow in future. + errors + An approximate count of read errors that have been detected on + this device but have not caused the device to be evicted from + the array (either because they were corrected or because they + happened while the array was read-only). When using version-1 + metadata, this value persists across restarts of the array. + + This value can be written while assembling an array thus + providing an ongoing count for arrays with metadata managed by + userspace. + An active md device will also contain and entry for each active device in the array. These are named |