On Wed, May 13, 2020 at 06:17:02PM +0200, Stefan G. Weichinger wrote:
> Now look at this run of
>
> "amtapetype -b 128k /dev/nst0"
>
> with another tape, FUJI instead of HP:
>
> define tapetype LTO3-fuji {
> comment "Created by amtapetype; compression disabled"
> length 284180096 kbytes
> filemark 20803 kbytes
> speed 38376 kps
> blocksize 128 kbytes
> }
>
> ~290 GB ... faster, and large filemarks.
>
> Maybe that drive is somehow failing .. ?
I wasn't sure what LEOM was. I assume it is "Logical End of Media".
Anyway I came across two references that said need for cleaning
is one reason for getting early EOM.
I'm wondering also if this could be a case of Amanda tapes being
labelled with the mode set to LTO-2 capacity. I know you check
the mode and it shows 44, but Amanda always reads the tape before
writing. Could this be setting the mode back to 42 because the
tapes were initially labelled with the mode set incorrectly?
What if you forget about amtapetype and simply use dd to see how
much random data it will write to tape.
Jon
--
Jon H. LaBadie [email protected]
11226 South Shore Rd. (703) 787-0688 (H)
Reston, VA 20190 (703) 935-6720 (C)
