On Fri, 12 Mar 2010 16:09:43 -0800
"Patrick J. LoPresti" [off-list ref] wrote:

Addendum (for the archives).

EVMS claims to support this:

http://evms.sourceforge.net/user_guide/#resizeraid0

Just for clarification, that is an off-line non-interruptible (better have a
UPS) resize.

There is a command line tool to do this:

  http://unthought.net/raidreconf/

however I wouldn't recommend it, because if anything goes wrong in the middle,
you lose your data.

NeilBrown