From f655675b3fe09c4d0506d357527fe07544623009 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 26 Jun 2006 00:28:01 -0700 Subject: [PATCH] md: Allow the write_mostly flag to be set via sysfs It appears in /sys/mdX/md/dev-YYY/state and can be set or cleared by writing 'writemostly' or '-writemostly' respectively. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/md.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/md.txt') 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 -- cgit v1.2.3-59-g8ed1b