rsync - Apr 2010 - Device not configured (explanation)

I am involved with the development of LBackup <http://www.lbackup.org>

Recently there was a post to the lbackup-dicussion mailing list. 
<http://tinyurl.com/lbackup-discussion-device-not>

Within the post they reported the following error:
> rsync: read 
>
"/Volumes/Drobo_HD/lbackups/theserver.Homes/Section.0/Faculty/andrewmac/.DS_Store":
>  Device not configured (6)
I am curious to know if anyone else has seen this error on Mac OS X. In
addition, is any one able to shed some light on what conditions may cause this
error to occur?

Any assistance, pointers, advice would be much appreciated. Should you need more
information then please let me know what would be helpful.


-----------------------------------
This email is protected by LBackup
http://www.lbackup.org

On Fri, 2010-04-30 at 13:32 +1200, Henri Shustak wrote:
> > rsync: read 
> >
"/Volumes/Drobo_HD/lbackups/theserver.Homes/Section.0/Faculty/andrewmac/.DS_Store":
> >  Device not configured (6)
> 
> I am curious to know if anyone else has seen this error on Mac OS X.
> In addition, is any one able to shed some light on what conditions may
> cause this error to occur?
As you might have guessed, that error is coming from the filesystem and
is not rsync's fault; copying the file with cp should have similar
chances of incurring the error.  The symbolic name for errno 6 is ENXIO,
and the Mac OS X read(2) man page documents two cases in which it
occurs:

     [ENXIO]            An action is requested of a device that does not exist..

     [ENXIO]            A requested action cannot be performed by the device.

http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPages/man2/read.2.html

All I can guess is that there is something wrong with the destination
disk or filesystem.  You might search the web for `mac os x "device not
configured"' for more hints.

-- 
Matt