[Amanda-users] Using amanda with Superloader 3 changer (SAS/LTO4)

It appears the problem is the Superloader/SCSI interface is sending a 
SG_ERR_CAT_RESET. I have just put a work around into mtx scsi command to wait 
for 5 mins if receives this status, and then ignore it.

But this doesn't explain why it is happening or really fix anything. If anyone 
can shed any further light on this then that would be very helpful.

Matt


> We have a Quantum Superloader 3 (SAS/LTO 4) connected to a dell server with a 
> PERC 6/e SAS card running RHEL 5. 
> 
> The changer and the drive appear OK and I can write to tapes and load them 
> etc. but each time mtx runs it gives an error, but the changer nevertheless 
> executes the command correctly, but (and I guess correctly) amanda believes 
> the error and aborts whatever it is doing. 
> 
> I'm suspecting some form of timeout but I'm not sure. 
> 
> The mtx error is : 
> Unloading Data Transfer Element into Storage Element 1...mtx: Request Sense: 
> Long Report=yes 
> mtx: Request Sense: Valid Residual=no 
> mtx: Request Sense: Error Code=70 (Current) 
> mtx: Request Sense: Sense Key=Unit Attention 
> mtx: Request Sense: FileMark=no 
> mtx: Request Sense: EOM=no 
> mtx: Request Sense: ILI=no 
> mtx: Request Sense: Additional Sense Code = 29 
> mtx: Request Sense: Additional Sense Qualifier = 03 
> mtx: Request Sense: BPV=no 
> mtx: Request Sense: Error in CDB=no 
> mtx: Request Sense: SKSV=no 
> MOVE MEDIUM from Element Address 32 to 256 Failed 
> 
> for an unload but load is similar. And any other commands that require the 
> changer to do anything, status and inquiry work fine. 
> 
> Does anyone know what is going on here, is there a way around it, or a 
> solution? 
> 
> Matt


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