From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: Fwd: 2TB USB hard drive for backing up Date: Tue, 22 Jan 2013 12:49:52 +0100 Message-ID: <2472909.UxI1EnLDV4@linux-5eaq.site> References: <1358852735.2387.34.camel@dabdike.int.hansenpartnership.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1358852735.2387.34.camel@dabdike.int.hansenpartnership.com> Sender: linux-scsi-owner@vger.kernel.org To: James Bottomley Cc: Ellwood Blues , linux-efi@vger.kernel.org, linux-scsi , USB Storage List List-Id: linux-efi@vger.kernel.org On Tuesday 22 January 2013 11:05:35 James Bottomley wrote: > > May 3 18:19:06 relampago3 kernel: [ 3948.472796] sd 7:0:0:0: [sdf] > > 1565565872 512-byte logical blocks: (801 GB/746 GiB) > > This looks like a wrap around of your actual size. This appears to > indicate the device isn't replying correctly to READ CAPACITY. The > conventional return from READ CAPACITY should be -1 which would trigger > us to retry with READ CAPACITY(16). What can we do? The answer the device is giving is quite ordinary. Do we need another quirk and an associated flag? Regards Oliver