On 16/02/12 13:27, Darci Dambrós Junior wrote:

> I used the command btape for testing. Everything is ok, there was no error:
>
> btape-c bacula-sd.conf / dev/nst0
>      test

did you try the "fill" command?

> In addition, do not know how btape can help since the error runs from the
> backup of data recorded on the 20GB cartridge.

"test" tests general tape functions.

"fill" tests writing to the entire tape and detection of the end, 
continuation to a second tape. etc.

If it breaks at 20Gb on "fill", try John's suggestion:

"tar cvf /dev/nst0 /dev/sda" (or other large disk full of data. 
Partition tables don't matter. You're simply testing writing)


Cable/terminator errors are normally random. If multiple tapes are 
erroring at the same point then there's usually another problem.


Having said that: 20Gb is about one tape forward pass on LTO4 with 
"average" data compression levels. (LTO tapes are recorded in a series 
of data stripes and the tape passes backwards and forwards multiple 
times to be filled.)

The drive will record "end of tape" if there is excessive back-tension 
and bacula translates that to "full"

Have the tapes been dropped?

Have you tried the test with a completely unrelated LTO4 cartridge?

Did you download the HP LT&T tools? (They work on IBM drives too, but 
IBM have a set of test tools as well)





------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing 
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users