From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Robinson Subject: Re: imsm: 32 bit sector counts and > 2TB disks Date: Thu, 13 Dec 2012 17:08:23 +0000 Message-ID: <50CA0B87.5080200@anonymous.org.uk> References: <50CA062D.2000002@ubuntu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <50CA062D.2000002@ubuntu.com> Sender: linux-raid-owner@vger.kernel.org To: Phillip Susi Cc: Linux RAID List-Id: linux-raid.ids On 13/12/2012 16:45, Phillip Susi wrote: > It appears that the imsm format only uses 32 bits to represent the > sector counts used from each disk. It appears that at least on > Windows, a disk > 2 TB works It certainly does. I built a Supermicro server with 3TB drives and IMSM RAID a couple of weeks ago. > so could someone from intel explain how > this is supposed to work? I'd be interested too. If I need to expand the array on the above, I was expecting to use a Linux live CD and mdadm to do the reshape. Cheers, John.