From mboxrd@z Thu Jan 1 00:00:00 1970 From: Phil Turmel Subject: Re: strange partition table and slow speeds Date: Mon, 17 Dec 2012 12:18:42 -0500 Message-ID: <50CF53F2.30404@turmel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Alex Pientka Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi Alex, On 12/17/2012 09:17 AM, Alex Pientka wrote: [trim /] > > /dev/md0: > Version : 1.1 ^^^^^ You've deliberately chosen a metadata version that places the superblock at sector 0 of the given device. If that is a whole disk, it overwrites the partition table. The default metadata is v1.2 (which places the superblock at offset 4k) for this very reason. HTH, Phil