From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boaz Harrosh Subject: Re: Large disk drives Date: Thu, 06 Nov 2014 18:34:28 +0200 Message-ID: <545BA314.4050109@plexistor.com> References: <1415203668.13212.2.camel@jarvis> <20141105193045.GA13265@infradead.org> <1415269814.29907.19.camel@jarvis.quadriga.com> <545B86AC.3080704@plexistor.com> <1415289258.10617.4.camel@jarvis.quadriga.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wg0-f52.google.com ([74.125.82.52]:39263 "EHLO mail-wg0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751760AbaKFQeb (ORCPT ); Thu, 6 Nov 2014 11:34:31 -0500 Received: by mail-wg0-f52.google.com with SMTP id b13so1625540wgh.11 for ; Thu, 06 Nov 2014 08:34:30 -0800 (PST) In-Reply-To: <1415289258.10617.4.camel@jarvis.quadriga.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: Christoph Hellwig , Alan Stern , "Dale R. Worley" , linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org On 11/06/2014 05:54 PM, James Bottomley wrote: > > We don't have a failure. This is the problem. Determining that a > problem exists > OK Sorry. I assumed the bridge is smart enough to do nothing, ie READ_CAPACITY_10 is passed as is via sata to the device that actually supports READ_CAPACITY_16, as I understand then the actual good drive is not suppose to send size-modulue-2G in response to READ_CAPACITY_10. Should it ? Then the bridge just sends that back to me, now if I send READ_CAPACITY_16 the bridge will return NOT-SUPPORTED because it is unexpected. But what are you saying that the bridge was smart enough to do READ_CAPACITY_16 get a 64bit value from the drive and then return the lower 32bit to me ? Really ? I would not imagine in the life of me someone so dumb. And surly it is against any spec. Are you sure ? I think you are wrong I think the guy reported that he can only see 2T out of his 3T drive which means the bridge returned 0xffffffff, exactly 2T > James > > But hey, I guess stupidity is limitless, this one here pushing real far. Cheers Boaz