Hi,

25.05.2008 08:14, Gary Danko wrote:
> I am trying to use a Spectra 10000 AIT tape loader to back up my data
> at home. The loader is at /dev/sg3 but if I try to query the status
> with mtx I receive this error:
> 
> mtx: Request Sense: Long Report=yes
> mtx: Request Sense: Valid Residual=yes
> mtx: Request Sense: Error Code=70 (Current)
> mtx: Request Sense: Sense Key=Illegal Request
> mtx: Request Sense: FileMark=no
> mtx: Request Sense: EOM=no
> mtx: Request Sense: ILI=no
> mtx: Request Sense: Residual = 00 00 00 00
> mtx: Request Sense: Additional Sense Code = 3D
> mtx: Request Sense: Additional Sense Qualifier = 80
> mtx: Request Sense: BPV=no
> mtx: Request Sense: Error in CDB=no
> mtx: Request Sense: SKSV=no
> Mode sense (0x1A) for Page 0x1D failed
> mtx: Request Sense: Long Report=yes
> mtx: Request Sense: Valid Residual=yes
> mtx: Request Sense: Error Code=70 (Current)
> mtx: Request Sense: Sense Key=Illegal Request
> mtx: Request Sense: FileMark=no
> mtx: Request Sense: EOM=no
> mtx: Request Sense: ILI=no
> mtx: Request Sense: Residual = 00 00 00 00
> mtx: Request Sense: Additional Sense Code = 3D
> mtx: Request Sense: Additional Sense Qualifier = 80
> mtx: Request Sense: BPV=no
> mtx: Request Sense: Error in CDB=no
> mtx: Request Sense: SKSV=no
> READ ELEMENT STATUS Command Failed
> 
> The MTX FAQ mentions this error:
> 
> Q:     I get
> # mtx -f /dev/sgr status
> mtx: Request Sense: Error Code=70 (Current)
> mtx: Request Sense: Sense Key=Not Ready
> mtx: Request Sense: Additional Sense Code = 04
> mtx: Request Sense: Additional Sense Qualifier = 8E
> mtx: READ ELEMENT STATUS Command Failed
> What gives?
> A:     Make sure your loader is in random mode, not sequential mode. Most
> "real" loaders (as vs. DAT autoloaders) will not properly report
> status information unless they are in "random" mode.
> 
> How do I put my loader into random mode? I cannot find anything on the
> internet about it.

I don't know that exact model, but usually you do this on the front 
panel of the device. Could also be a hardware switch - you'll probably 
have to look into the changers manual. I believe 
http://www.spectralogic.com/index.cfm?fuseaction=home.displayFile&DocID=66 
is the correct URL... and I believe it doesn't mention you can run the 
library in sequential or stacker mode.

The sense code lookup at 
http://www.spectralogic.com/index.cfm?fuseaction=support.senseCodeForm&catID=247&p=245
 
only has one entry with your sense codes 3D/80 - this one:

http://www.spectralogic.com/index.cfm?fuseaction=support.senseCodeResult&CatID=311&senseKey=5&senseCode=3d&senseQualifier=80&SUBMIT=Submit#self#

which does not imply it's a sequential / random mode problem, but 
rather SCSI related.

Arno


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-- 
Arno Lehmann
IT-Service Lehmann
www.its-lehmann.de

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