SAS Drive - Presence detect

Kevin Khuu kevin98146 at
Tue Jul 13 15:28:06 PDT 2004

* From the T10 Reflector (t10 at, posted by:
* "Kevin Khuu" <kevin98146 at>
Is there anything wrong with using one of the GND pins on the SAS hard =
connector as presence detect?
On the SAS hard drive backplane, I have this presence detect signal =
up to VDD.  When I plugged in a SAS hard drive, the GND pin on the hard =

drive would pull this signal low.


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