From mboxrd@z Thu Jan 1 00:00:00 1970 From: Spelic Subject: Alignment to MD stripes possible? Date: Tue, 23 Nov 2010 19:09:50 +0100 Message-ID: <4CEC036E.2010202@shiftmail.org> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=ISO-8859-1 To: linux-btrfs@vger.kernel.org Return-path: List-ID: Hello btrfs people btrfs still does not implement raid5,6 so here comes the question: all filesystems have mkfs flags for aligning to an underlying RAID. Is it there also for btrfs? I don't seem able to find it. Is it autodetected for MD/LVM2 like in xfs and ext4? I think that some people in the enterprise will not give up on their hardware arrays so easily... so the option should be available imho. (Is it feasible at all actually? I don't know cow filesystems much.) COW features are cool to use even if the RAID is elsewhere and the write hole remains... Thank you