questions about wide port

shogo hamasaku hamasaku at d1.hw.necst.nec.co.jp
Tue Jul 23 01:23:05 PDT 2002


* From the T10 Reflector (t10 at t10.org), posted by:
* shogo hamasaku <hamasaku at d1.hw.necst.nec.co.jp>
*
This is multipart message.

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Hello,
I have some questions about wide port connection. I appreciate if 
someone gives me the answer.

I attached the file shows a connection for my question.

Q1. Is this connection allowed?
If yes, I have some additional questions.

For example, the write command progresses as followings, and my 
questions are in 4..

1. Initiator device opens the target device.
     The link via Physical Link A-1 through Physical Link B will be 
     established.
2. Target device issues XFER_RDY.
     It goes through Physical Link B to Physical Link A-1.
3. Initiator device sends data.
     It goes through Physical Link A-1 to Physical Link B.
4. Initiator device opens the same target device.
 Q2. Is it allowed to send OPEN through A-2 while the connection 
     via Physical Link A-1 through Physical Link B is already 
     established?
 Q3. If allowed, (1) Does the expander device transfer the Open to 
     Physical Link B after waiting for the close of current connection?
     or (2) Does the expander device send OPEN REJECT? or (3) Does the 
     expander device recognize the link is currently connected and send 
     OPEN ACCEPT?

-----------------------------------------------------------
Shogo Hamasaku          hamasaku at d1.hw.necst.nec.co.jp

-----------------------------------------------------------
Shogo Hamasaku          hamasaku at d1.hw.necst.nec.co.jp


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