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There are standard SATA host controller interfaces available today which
have the capability of reporting different port capabilities/limitations
(external/internal, hot pluggability, etc...).  With that understood, it
should be rather straightforward to understand (through SW) what
capabilities are available on a port which a device in question is
connected to.  

Example - AHCI (http://www.intel.com/technology/serialata/ahci.htm)

Regards,
Brian Dees


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Frank Shu
Sent: Monday, July 17, 2006 5:41 PM
To: [EMAIL PROTECTED]; [email protected]
Subject: RE: [t13] What's the difference of eSATA Hard drive and normal
SATA-II hard drive?

This message is from the T13 list server.


Some of the issues do exist today, but eSATA HDD can just make them even
bigger(like security). Some of issues are controlled by OS today, for
instance, you can not boot from a USB device. But, It will be absolutely
unacceptable if we can't boot from a (e)SATA HDD since there is no
standard way to tell which port is a internal or external SATA port on a
SATA controller chip today in the spec.

Frank Shu
[EMAIL PROTECTED]


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hale
Landis
Sent: Thursday, July 13, 2006 9:09 AM
To: [email protected]
Subject: RE: [t13] What's the difference of eSATA Hard drive and normal
SATA-II hard drive?

This message is from the T13 list server.


Frank Shu said:
> Furthermore, eSATA device, especially eSATA hard drive, also introducs
> issues like data security, boot/non-boot, authentication and
licensing.
> The industry as a whole needs to address those issues before eSATA
device
> can be very useful.

Why is an external SATA (aka eSATA?) any different than an external USB
or
1394 hard disk drive?

--
Hale Landis -- [EMAIL PROTECTED]

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