Darin,
To clarify my statements, I guess i wasn't as clear as
I thought.
> Define your idea of what a
"real" Serial ATA device is.
As in serial ATA interface build onto the device
where the device firmware would control the IDENT data versus a paddle card SATA
to PATA adapter. This would be where the paddle card would have to capture
the IDENT and modify the data to indicate it was now SATA rather then the PATA
device. This wouldn't be a very pretty thing to do.
> By the way, you would
probably want a lot more information that just how the device translates data.
> Knowing whether it is a
bridge or not will not solve any compatibilities, as there can be multiple
revisions
>
of bridges in the
marketplace as well.
----- Original Message -----
Sent: Wednesday, December 03, 2003 6:01
PM
Subject: RE: [t13] Microsoft's answer to
how to identify SATA which is really a bridged PATA
Gary,
It
just seems like everyone would like to know if the attached device is really a
SATA device or not and
there seems to be an indication that it is needed
more and more.
Define your idea of what a
"real" Serial ATA device is.
To the industry, it seems to
me that something that plugs into a Serial ATA port on the motherboard using a
Serial ATA cable would be a Serial ATA device. Where the Serial ATA
translation occurs in/on the HDD shouldn't matter.
By the way, you would
probably want a lot more information that just how the device translates data.
Knowing whether it is a bridge or not will not solve any compatibilities, as
there can be multiple revisions of bridges in the marketplace as
well.
Regards,
Darrin
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Gary
Laatsch
Sent: Wednesday, December 03, 2003 5:33 PM
To:
[EMAIL PROTECTED]
Subject: Re: [t13] Microsoft's answer to how to identify SATA
which is
really a bridged PATA
This message is from the T13 list
server.
I brought up on the reflector awhile back about adding a
bit to IDENT to
indicate SATA device. I remember mentioning it would
be a good thing
especially since not too many SATA devices were out in the
field at that
time. As more and more are shipped and more and more
incompatibilities are
found is anyone considering this yet. I know it
would mean that a SATA
paddle card would have to capture IDENT command and
modify the data and this
might not be an ideal thing to do. But what
about the native SATA devices?
I didn't see any mention of it in the
minutes from Oct. 2003 meetings. I
have also gone through the latest
ATAPI-7 Book 1 and see no mention of it.
Is there a reason no one wants to
do this. It just seems like everyone
would like to know if the
attached device is really a SATA device or not and
there seems to be an
indication that it is needed more and more.
Gary
Laatsch
[EMAIL PROTECTED]
----- Original Message
-----
From: "Nathan Obr" <[EMAIL PROTECTED]>
To:
<[EMAIL PROTECTED]>
Sent: Wednesday, December 03, 2003 2:42
PM
Subject: RE: [t13] Microsoft's answer to how to identify SATA which
is
really a bridged PATA
> This message is from the T13 list
server.
>
>
> Except for the hot-pluggable part, you are
correct.
> The PCI sub-class code distinguishes emulation from native
not parallel
> from serial. However, there is no assumptions about
hot-pluggable made
> in either.
>
> The purpose of this is
to prevent the loading of existing PATA drivers
> on SATA controllers
that do not emulate PATA.
>
> Nathan
>
> -----Original
Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Pat
> LaVarre
> Sent: Wednesday, December 03, 2003 1:29 PM
>
To: [EMAIL PROTECTED]
> Subject: Re: [t13] Microsoft's answer to how to
identify SATA which is
> really a bridged PATA
>
> This
message is from the T13 list server.
>
>
> >
Subject: [t13] Microsoft's answer to how to
> > identify SATA
which is really a bridged PATA
> > ...
> > From:
Robert Horton ...
> > Has anyone seen Microsoft's answer on to
how
> > to identify SATA which is really a
bridged
> > PATA:
> > ...
> >
Identifying Emulating Parallel ATA Mode and
> > Native Serial
ATA Mode Controllers ...
> >
> > http://www.microsoft.com/whdc/hwdev/tech/storage/serialata_faq.mspx
>
>
This says how to distinguish whether host controllers support
>
hot-pluggable native serial ata or just emulated parallel ata, yes?
>
Nothing about how to distinguish a parallel ata device from a serial
>
ata device?
>
> Pat
LaVarre
>
