Subject: Re: cdrecord on DEC 3000/300
To: Paul Mather <paul@gromit.dlib.vt.edu>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-alpha
Date: 08/28/2000 23:35:25
On Mon, Aug 28, 2000 at 02:52:52PM -0400, Paul Mather wrote:
> To follow up my own post, it seems the Smart and Friendly was neither
> smart nor friendly, because the Plextor worked like a dream on my DEC
> 3000/300 (software, hardware et al).
> 
> The only thing I couldn't get it to do was burn at 12x (it would
> eventually buffer underrun).  The maximum it could manage was 8x.  I'm
> guessing the SCSI bus on the DEC 3000/300 just can't handle sustained
> 12x data transfer.
> 
> Does anyone know what is the top SCSI bandwidth of the 3000/300?  I've
> never seen anything above ~3400K/sec reported by systat, and, by my
> reckoning, 12x burning needs ~3600K/sec (~1800K from the disc and the
> same to the CD writer)...

It's possible that the CD writer doesn't release the bus fast enouth - does
both the disk and CD negotiate at 10Mb/s ?

If this machine has a PCI bus you can try to add a second, cheap SCSI board
(should be possible to find 53c810-based board for close to free now).

--
Manuel Bouyer <bouyer@antioche.eu.org>
--