Re: tapetype definitions
2006-06-02 18:14:55
On Fri, Jun 02, 2006 at 11:23:11PM +0200, Paul Bijnens wrote:
> Chris Lee schreef:
> >Just to add to the whole tape type thing :)
> >I ran amtapetype on my DLT8000 (40/80GB) using a DLTIV tape.
> >Now I assumed that it should give me a 40GB capacity as I have hardware
> >compression off.
> >But I get the following:
> >define tapetype DLT8000 {
> > comment "just produced by tapetype prog (hardware compression off)"
> > length 36650 mbytes
> > filemark 0 kbytes
> > speed 3944 kps
> >}
> >
> >Now it is not far off but should it not be closer?
> >Also I get a lot of shoe shining during amtapetype run
>
>
> Two remarks:
> 40 GB on the tape is means about 40 * 1000 * 1000 * 1000 bytes.
> Amanda counts in powers of 2: 40000000000/(1024*1024*1024) = 37.25 GiB
>
I would always claim that when I saw low numbers.
But my recently aquired LTO-1, nominally 100GB and thus should measure 94GB,
actually measured 101+ amanda GB :)
--
Jon H. LaBadie jon AT jgcomp DOT com
JG Computing
4455 Province Line Road (609) 252-0159
Princeton, NJ 08540-4322 (609) 683-7220 (fax)
|
|
|