From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: A USB enclosure that supports SCSI-ATA-Passthru (cheap!) Date: Sun, 19 Oct 2008 12:38:05 -0400 Message-ID: <48FB626D.4070205@rtr.ca> References: <48FB60CC.5000008@rtr.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:37928 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751478AbYJSQhe (ORCPT ); Sun, 19 Oct 2008 12:37:34 -0400 In-Reply-To: <48FB60CC.5000008@rtr.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: IDE/ATA development list , Alan Cox , Tejun Heo , Jeff Garzik , Bruce Allen Mark Lord wrote: > I believe this is of possible interest to others here: > > Most newer USB enclosures now support SCSI STOP/START commands. > > But.. the Western Digital 2.5" mobile USB2 enclosures (SATA inside) > appear to also support the SCSI-ATA-Command-Passthru protocol. > These are the first ones I have seen here that do this. > > So, things like "hdparm -I /dev/sdb" work without fuss on an > external USB drive when used with these enclosures. > As does setting automatic spin-down with "hdparm -S". .. > Model: WD-250XMS-00 (with 250GB drive inside, removeable). > USB info: 1058:0702 Western Digital Technologies, Inc. > Bridge chip by InitIO: INIC-1606L .. Mmm.. I also have two NexStar-3 2.5" USB/eSata enclosures here, but they are not identical on the inside. The one with an InitIO INIC-1610L chip does *not* support SAT, but the second one with an InitIO INIC-1611L chip *does* work with SAT! Good to see these chips getting out there now, as it allows external storage to be spun-down much of the time when only rarely needed -- keeps the drives from cooking the rest of the time. Cheers