Am Montag, 6. Oktober 2014 22:16:27 UTC+2 schrieb [email protected]:
> Zitat von Marco Langerwisch <[email protected]>:
> 
> 
> 
> > We are using an Bareos 13.2.2 Installation an Ubuntu Server 12.04  
> 
> > LTS in combination with a HP-Ultrium 3000 SAS LTO-5 Tape Drive.
> 
> >
> 
> > We are having serious trouble with the tape-handling.
> 
> >
> 
> > - Testing the Tape writing with btape --> all fine
> 
> > - If we take a new, blank tape, label it, and bareos writes straight  
> 
> > forward on tape --> no Problems.
> 
> > - If we remove the Tape from the Drive an put it back in later,  
> 
> > bareos mounts the tape correct, but when then writing starts an the  
> 
> > tape winds forward, bareos doesn't find the EOD.
> 
> >
> 
> >  Error: Unable to position to end of data on device "HP-Ultrium3000"  
> 
> > (/dev/nst0): ERR=dev.c:1216 ioctl MTFSF error on "HP-Ultrium3000"  
> 
> > (/dev/nst0). ERR=Input/output error.
> 
> >
> 
> > - If we mount another, older tape, that worked before, bareos cannot  
> 
> > read the VolumeLabel:
> 
> >
> 
> > Error: dev.c:1216 ioctl MTFSF error on "HP-Ultrium3000" (/dev/nst0).  
> 
> > ERR=Input/output error.
> 
> > Error: label.c:834 Expecting Volume Label, got FI=4292  
> 
> > Stream=ENCRYPTED-FILE len=36307
> 
> >
> 
> > - We have loaded the scsicrypto SD-Plugins and disabled Encryption  
> 
> > on the Drive:
> 
> >  Drive Crypto Enabled = no
> 
> >
> 
> > What can I do to solve this problems?
> 
> > Anyone an idea?
> 
> >
> 
> > Greetings,
> 
> > Marco
> 
> 
> 
> Hello,
> 
> 
> 
> Have you every restored data with this tape drive?
> 
> 
> 
> Have you tried a cleaning tape?
> 
> 
> 
> What kind of SAS Controller do you use?
> 
> 
> 
> It looks like the tape drive have problems reading it's own tape for  
> 
> whatever reason. If you have a spare drive try the tape with that one.  
> 
> Also check the tape drive with "tapeinfo" for raising error counters.
> 
> 
> 
> Regards
> 
> 
> 
> Andreas

Hi Andreas,

no we have never restored data from the tapes. We are using the tapes only in 
Copy-Jobs and the tape-labels are only recognized once, so we can't test till 
now.
We have also tested with LTO4 Tapes, here the drive recognized the label one 
time after changing tapes. Second time the same Error experienced as with LTO5 
tapes.
We have cleaned the drive with a cleaning tape.

I can't see Errors in the tapeinfo Output (SerialNumber cleared):
# tapeinfo -f /dev/nst0
Product Type: Tape Drive
Vendor ID: 'HP      '
Product ID: 'Ultrium 5-SCSI  '
Revision: 'Z5AD'
Attached Changer API: No
SerialNumber: 'xxxx'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 1
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: Not Loaded
Density Code: 0x46
BlockSize: 0
DataCompEnabled: yes
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
BOP: yes
Block Position: 0
Partition 0 Remaining Kbytes: 800226
Partition 0 Size in Kbytes: 800226
ActivePartition: 0
EarlyWarningSize: 0
NumPartitions: 0
MaxPartitions: 0

We are using an IBM PCIe SAS HBA for the TapeDrive, i think it's an "IBM 3Gb 
SAS HBA v2".

Tomorrow I can do an btape test and send the output.
We don't have a SpareDrive for now.

Regards,
Marco

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