RE: ATA/IP & ATAPI

[Costa Sapuntzakis <csapuntz@cisco.com>]

Installed base is a very good argument. :) Here are some of the
issues:

Many ATA drivers are written to do register-level accesses. Rewriting
them to send packets will involve some serious reworking. 

An ATA/IP device could maintain a register interface to the host with
a special ATA/ISA<->ATA/IP bridge (either emulated in BIOS or as a
real PCI device).

Currently, all ATA devices plug into motherboards with
processors. These processors could act as SCSI<->ATA converters.
Or are there ATA-only functions that are lost by that sort of bridging?
Perhaps SMART...

Would an ATA/IP device be significantly simpler than a SCSI/IP device
from a firmware standpoint?

-Costa

On Tue, 15 Feb 2000, Bradley, Mark wrote:

> About 85% of storage on IA32/64 systems is IDE/ATA.  Ignoring
> this substantial a volume seems inappropriate.  Further, there
> is a proposal for Serial ATA (SAT) that might lend better lend
> itself to this work.
>   --  markb
> 
> > -----Original Message-----
> > From: Costa Sapuntzakis [mailto:csapuntz@cisco.com]
> > Sent: Tuesday, February 15, 2000 1:07 AM
> > To: ips@ece.cmu.edu
> > Subject: ATA/IP & ATAPI
> > 
> > 
> > 
> > Hi,
> > 
> > What are the arguments for ATA/IP?
> > 
> > -Costa
> > 
> 
> 
>