Re: FIFO
Les Mikesell <[email protected]>
| Newsgroups | gmane.comp.archivers.star.user |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 2005-10-04 at 12:02, Zoran Ljubisic wrote:
> >
> > If Linux honores this, you will most likely end up in usually
> > unreadable tapes.
>
> I think I don't understand your sentence here. Can you be more accurate
> please?
> Why should I end up in usually unreadable tape?
>
> > It may be however that Linux does not honor
> > blocking at all :-(
> > If sdd if=/dev/tape bs=10m -onull -deb ug does not show you the 8MB
> > Blocks, Linus did give you 512 byte blocksize.
>
> SuSE 9.3 prof don't have on it's DVD "sdd" program.
> Can I use dd instead?
I'm not sure what sdd is, but dd doesn't reblock unless you specify
obs=. That is, if you just use bs=xxx it will issue reads of xxx size
but write the same size if the results are less. With ibs= and obs=
it will always reblock and write exactly the size specified. Or at
least that's the way it worked a long time ago.
--
Les Mikesell
[email protected]