Manuel,

=> 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 ?

Bootup messages indicate the max sync rate for each device (source disc
and CD writer) are 5.00MB/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).

No, the DEC 3000/300 is turbochannel.  I don't know if turbochannel SCSI
cards are supported under NetBSD, even assuming I could track one down.

Cheers,

Paul.

e-mail: paul@gromit.dlib.vt.edu

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