From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eyal Lebedinsky Subject: simple question: where is internal bitmap stored? Date: Wed, 13 May 2009 18:37:12 +1000 Message-ID: <4A0A86B8.5030905@eyal.emu.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids If I have a live raid and want to enable bitmap then I do mdadm --grow /dev/md0 --bitmap=internal Does this bitmap use space in the already present header? If so then does this mean that the headers have enough reserve for this? Why not always use the bitmap then? If it carves extra space from the device which already has data (e.g. a fs) then surely this will be problematic. -- Eyal Lebedinsky (eyal@eyal.emu.id.au)