linux-kernel - Re: SMART to USB/sata dock in 2.6.27-rc5 doesn't work

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Message-ID: <48F40164.5000502@kernel.org>
Date:	Tue, 14 Oct 2008 11:18:12 +0900
From:	Tejun Heo <tj@...nel.org>
To:	David Greaves <david@...eaves.com>
CC:	Smartmontools Mailing List 
	<smartmontools-support@...ts.sourceforge.net>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: SMART to USB/sata dock in 2.6.27-rc5 doesn't work

David Greaves wrote:
> I just bought a usb/sata adapter like this:
>   http://www.thinkgeek.com/computing/drives/a7ea/?cpg=ab
> lsusb -v is below
> 
> Works OK as a hot-plug SATA disk so I can check what's on that old disk in the
> corner; but smartctl doesn't work so I can't see if it has any errors, run
> selftests etc.
> 
> Kernel is 2.6.27-rc5 (I've also tried older kernels)
> 
> I plugged a previously zeroed drive in and...
> 
> root@ash:~ # smartctl -a /dev/sde
> smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen
> Home page is http://smartmontools.sourceforge.net/
> 
> Device: ST332062 0AS              Version:
> Device type: disk
> Local Time is: Thu Oct  9 21:38:16 2008 BST
> Device supports SMART and is Enabled
> Temperature Warning Disabled or Not Supported
> SMART Health Status: OK
> 
> Error Counter logging not supported
> Device does not support Self Test logging

The USB bridge should support SAT (SCSI-ATA translation) and many
don't.  Nothing much can be done about it.  The hardware just don't know
how to do it.

-- 
tejun
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