From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: Problem with USB-to-SATA adapters (was: AS2105-based enclosure size issues with >2TB HDDs) Date: Wed, 27 Aug 2014 13:01:55 -0700 Message-ID: <1409169715.10098.1.camel@jarvis.lan> References: <87801b450dee41dda169a3aa2dd2baf6@serv030.corp.eldorado.org.br> <1408972618.10300.35.camel@linux-fkkt.site> <201408261939.s7QJdg4B013031@hobgoblin.ariadne.com> <1409083158.3812.66.camel@jarvis.lan> <201408271921.s7RJLnRw009577@hobgoblin.ariadne.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from bedivere.hansenpartnership.com ([66.63.167.143]:57640 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964967AbaH0UB4 (ORCPT ); Wed, 27 Aug 2014 16:01:56 -0400 In-Reply-To: <201408271921.s7RJLnRw009577@hobgoblin.ariadne.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Dale R. Worley" Cc: linux-usb@vger.kernel.org, linux-scsi@vger.kernel.org On Wed, 2014-08-27 at 15:21 -0400, Dale R. Worley wrote: > > From: James Bottomley > > > Did you try read capacity 16 on it? What happened? (the AS2105 rejects > > read capacity 16, so there's no reliable way to deduce the capacity of > > drives over 2TB). > > OK, I had to track down which package contains sg_readcap. > > The adapter that fails gives this output: > > # sg_readcap --16 /dev/sdb > bad field in READ CAPACITY (16) cdb including unsupported service action OK, so that's definitely the tame taxonomy. James