Disabled SAS Expander Port

Gil Romo gil.romo at qlogic.com
Wed Nov 19 11:21:39 PST 2003


* From the T10 Reflector (t10 at t10.org), posted by:
* Gil Romo <gil.romo at qlogic.com>
*

Would a SAS device ever attempt to open a connection through a disabled port 
along the path to another SAS device?

If the originator-side expander port could not receive the OPEN address frame, 
the originator would timeout.

If the responder-side expander port could not forward the OPEN address frame, it 
might be forwarded out the expander's "subtractive" port, resulting in an 
OPEN_REJECT (WRONG DESTINATION) response.

Is this the expected behavior?  What would be the expander's response if it did 
not include a "subtractive" port.

Thanks.
------------
Gilbert Romo
Circuits & Integration
QLogic Corporation, Aliso Viejo, California
Office: 949-389-6266
E-mail: gil.romo at qlogic.com

*
* For T10 Reflector information, send a message with
* 'info t10' (no quotes) in the message body to majordomo at t10.org




More information about the T10 mailing list