> These are my results:
>
> smartctl version 5.36 [x86_64-redhat-linux-gnu] Copyright (C) 2002-6 Bruce 
> Allen
> Home page is http://smartmontools.sourceforge.net/
>
> Device: IBM      HH LTO Gen 3     Version: 76B0
> Serial number: 1020024392
> Device type: tape
> Transport protocol: SAS
> Local Time is: Thu Oct 18 09:34:18 2012 ART
> Temperature Warning Disabled or Not Supported
> TapeAlert Supported
> TapeAlert: OK
>
> Error counter log:
>            Errors Corrected by           Total   Correction
> Gigabytes    Total
>                ECC          rereadDataCompEnableds/    errors
> algorithm      processed    uncorrected
>            fast | delayed   rewrites  corrected  invocations   [10^9
> bytes]  errors
> read:          0        0         0         0          0
> 0.000           0
> write:         0        0         0         0          0
> 0.000           0
>
> Non-medium error count:        0
> Device does not support Self Test logging

Although I have only tried this command 1 time, I think you need to do
that after using the drive for  a while or filling a tape. Since there
is no result..

> [root@superback ~]#  mt -f /dev/nst0 compression 1

Was there any data on the tape when you executed this command.
Remember you can not turn on compression if anything is written to the
tape. You must erase it first.

mt -f /dev/nst0 rewind
mt -f /dev/nst0 weof

John

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