--- On Wed, 24/2/10, Felipe Alvarez <felipe.alvarez@gmail.com> wrote:

From: Felipe Alvarez <redacted>
Subject: Re: Fwd: Majordomo results: Re: Majordomo results: .
To: Jon@ehardcastle.com
Cc: linux-raid@vger.kernel.org
Date: Wednesday, 24 February, 2010, 9:45

quoted

The beauty of that being that

when all the drives

quoted

have been retired/failed and the smallest partition
size is now 500GB or whatever you can
--grow=max and get that unused space.

Thanks. That's a good idea, because I would eventually like
to make
the array larger than it is as the drives get replaced, one
at a time.
Would the command be:
$ mdadm --grow /dev/md0 --size=max DEVICE1 DEVICE2 DEVICE3
DEVICE4

Felipe
--

Think it is simply mdadm --grow /dev/md0 --size=max 

But speaking from experience you'll likely run out of space before the bitter pill of retiring the drives/being unlucky enough for them to fail happens. You'll be adding new drives before you know it! And then... you'll probably want to consider RAID6 once you go over ~1TB per drive.