On Thursday June 29, [EMAIL PROTECTED] wrote:
> Why should this trickery be needed? When an array is mounted r/o it 
> should be clean. How can it be dirty. I assume readonly implies noatime, 
> I mount physically readonly devices without explicitly saying noatime 
> and nothing whines.

The 'filesystem' is mounted r/o.  The 'array' is not read-only, and
you cannot set an array to read-only while a filesystem is mounted
(because the array cannot tell that the mount is read-only).

A little while after the last write, an array will mark itself as
clean.  The effect of the 'kill -9', is to reduce this 'little while'
to 0.

So 
  remount readonly
  wait a little while
  kill machine 

would work too.

NeilBrown
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