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-rw-r--r--Documentation/md.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/md.txt b/Documentation/md.txt
index f3d418ba625e..0668f9dc9d29 100644
--- a/Documentation/md.txt
+++ b/Documentation/md.txt
@@ -309,6 +309,9 @@ Each directory contains:
faulty - device has been kicked from active use due to
a detected fault
in_sync - device is a fully in-sync member of the array
+ writemostly - device will only be subject to read
+ requests if there are no other options.
+ This applies only to raid1 arrays.
spare - device is working, but not a full member.
This includes spares that are in the process
of being recoverred to
@@ -316,6 +319,8 @@ Each directory contains:
This can be written to.
Writing "faulty" simulates a failure on the device.
Writing "remove" removes the device from the array.
+ Writing "writemostly" sets the writemostly flag.
+ Writing "-writemostly" clears the writemostly flag.
errors
An approximate count of read errors that have been detected on