|author||NeilBrown <firstname.lastname@example.org>||2014-08-14 14:54:05 +1000|
|committer||NeilBrown <email@example.com>||2014-08-14 14:54:05 +1000|
mdadm: document some more magic environment variables.
Others are mostly for developers. Signed-off-by: NeilBrown <firstname.lastname@example.org>
1 files changed, 26 insertions, 0 deletions
@@ -2887,6 +2887,20 @@ to '1', the
will create and devices that are needed.
+is in use it will normally request
+to start various background tasks (particularly
+.IR mdmon )
+rather than forking and running them in the background. This can be
+suppressed by setting
+.BR MDADM_NO_SYSTEMCTL=1 .
A key value of IMSM metadata is that it allows interoperability with
boot ROMs on Intel platforms, and with other major operating systems.
@@ -2903,6 +2917,18 @@ recovery. You should be aware that interoperability may be
compromised by setting this value.
+If an array is stopped while it is performing a reshape and that
+reshape was making use of a backup file, then when the array is
+will sometimes complain that the backup file is too old. If this
+happens and you are certain it is the right backup file, you can
+over-ride this check by setting
+in the environment.
Any string given in this variable is added to the start of the