W dniu 2010-01-10 14:47, Zdenek Behan pisze:

       -Z, --array-size=
              This is only meaningful with --grow and its effect is 
not  per‐
              sistent:  when  the  array  is  stopped an restarted the
default
              array size will be restored.

Yes, i missed it.

You didn't supply any argument to -Z at all, or to be precise, you
supplied /dev/md6 as the argument, whereas you should have put in the
array size.

Also, another thing I have noticed lately is, that _some_ short options
seem to be somehow oddly broken on my system and not accepting
arguments, even if they are supposed to be. If the segfault persists
after using the correct syntax, try using the long opts instead. I was
planning to dig more into this bug myself, so I might just kick self to
do it now.

long option, with suplied array size works correctly, so indeed problem
is in short option.
Thank you!
Regards.
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