Subject: iSCSI: resend of diagram from 2.5.1

From: "Andre Asselin" <[email-masked]>
Date: Tue, 6 Nov 2001 10:38:38 -0500

It looks like my original post with an updated diagram for section 2.5.1
got wrapped badly.  Here's a second attempt that hopefully will make it
through.

(original)
   ----------------------------IP Network---------------------
         |               |                    |
+--------|---------------|--------------------|---------------------+
|   +----|---------------|-----+         +----|---------+           |
|   | +---------+  +---------+ |         | +---------+  |           |
|   | | Network |  | Network | |         | | Network |  |           |
|   | | Portal  |  | Portal  | |         | | Portal  |  |           |
|   | +--|------+  +---------+ |         | +---------+  |           |
|   |    |               |     |         |    |         |           |
|   |    |    Portal     |     |         |    | Portal  |           |
|   |    |    Group 1    |     |         |    | Group 2 |           |
|   +--------------------------+         +--------------+           |
|        |               |                    |                     |
|   +----------------------------+  +-----------------------------+ |
|   | iSCSI Session (Target side)|  | iSCSI Session (Target side) | |
|   |                            |  |                             | |
|   |  (iSCSI Name + TSID=2)     |  | (iSCSI Name + TSID=1)       | |
|   +----------------------------+  +-----------------------------+ |
|                                                                   |
|                      iSCSI Target Node                            |
|              (within Network Entity, not shown)                   |
+-------------------------------------------------------------------+

(updated)

    ----------------------------IP Network---------------------
         |              |                       |
+--------|--------------|-----------------------|---------------------+
|        |              |                       |                     |
|   +----|----+    +----|----+             +----|----+                |
|   | Network |    | Network |             | Network |                |
|   | Portal  |    | Portal  |             | Portal  |                |
|   +---------+    +---------+             +---------+                |
|        |              |                       |                     |
| +------|--------------|-----------------------|-------------------+ |
| | +----|--------------|------+         +------|-------+           | |
| | |         Portal           |         |    Portal    |           | |
| | |         Group 1          |         |    Group 2   |           | |
| | +--------------------------+         +--------------+           | |
| |                |                             |                  | |
| | +----------------------------+  +-----------------------------+ | |
| | | iSCSI Session (Target side)|  | iSCSI Session (Target side) | | |
| | |                            |  |                             | | |
| | |  (iSCSI Name + TSID=2)     |  | (iSCSI Name + TSID=1)       | | |
| | +----------------------------+  +-----------------------------+ | |
| |                                                                 | |
| |                    iSCSI Target Node                            | |
| +-----------------------------------------------------------------+ |
|                                                                     |
|                       Network Entity                                |
+---------------------------------------------------------------------+

Andre Asselin
IBM ServeRAID Software Development
Research Triangle Park, NC

---

From: "John Hufferd" <[email-masked]>
Date: Tue, 6 Nov 2001 12:33:35 -0800

Andre,
Now that I can see the picture that you sent.  It probably now needs to
have the Names of the Target Side SCSI Ports clearly called out.

The picture might imply to some folks that the SCSI Port Name is associated
with "iSCSI Name + TSID"  where as the SCSI Port Name should be "iSCSI Name
+ PortalGroupTag".

The picture is, I think, technically correct, the Target End of the Session
can be associated with iSCSI Name+TSID, but that may cause others to go
through the same set of discussions that we have held recently, and they
might think that the SCSI Port Name includes the TSID.  I wonder if it
would be clearer to Align, in the pictures, the concept of Target End of a
Session with SCSI Port Name and give it the identification of "iSCSI Name +
PortalGroupTag" and leave TSID to the various text in the Draft and for it
be understood as just a Handle which the implementation can use in any way
it wants.

.
.
.
John L. Hufferd
Senior Technical Staff Member (STSM)
IBM/SSG San Jose Ca
Main Office (408) 256-0403, Tie: 276-0403,  eFax: (408) 904-4688
Home Office (408) 997-6136, Cell: (408) 499-9702
Internet address: [email-masked]

                Andre Asselin                          
                11/06/2001 07:38 AM                    

To:   John Hufferd/San Jose/IBM@IBMUS
cc:   [email-masked]
From: Andre Asselin/Raleigh/IBM@IBMUS
Subject:  iSCSI: resend of diagram from 2.5.1

(original)
   ----------------------------IP Network---------------------
         |               |                    |

(updated)

    ----------------------------IP Network---------------------
         |              |                       |

Andre Asselin

---

From: "Andre Asselin" <[email-masked]>
Date: Wed, 7 Nov 2001 11:27:51 -0500

John,
     How's this look?

    ----------------------------IP Network---------------------
         |              |                       |
+--------|--------------|-----------------------|---------------------+
|        |              |                       |                     |
|   +----|----+    +----|----+             +----|----+                |
|   | Network |    | Network |             | Network |                |
|   | Portal  |    | Portal  |             | Portal  |                |
|   +---------+    +---------+             +---------+                |
|        |              |                       |                     |
| +------|--------------|-----------------------|-------------------+ |
| | +----|--------------|------+    +-----------|-----------------+ | |
| | |      Portal Group 1      |    |       Portal Group 2        | | |
| | |                          |    |                             | | |
| | |     SCSI Target Port     |    |       SCSI Target Port      | | |
| | | (iSCSI Target Name +     |    | (iSCSI Target Name +        | | |
| | | 't' + 1)                 |    | 't' + 2)                    | | |
| | +--------------------------+    +-----------------------------+ | |
| |                |                             |                  | |
| | +----------------------------+  +-----------------------------+ | |
| | |        iSCSI Session       |  |      iSCSI Session          | | |
| | |                            |  |                             | | |
| | | (iSCSI Initiator Name +    |  | (iSCSI Initiator Name +     | | |
| | | ISID + iSCSI Target Name + |  | ISID + iSCSI Target Name +  | | |
| | | Portal Group ID)           |  | Portal Group ID)            | | |
| | +----------------------------+  +-----------------------------+ | |
| |                                                                 | |
| |                    iSCSI Target Node                            | |
| +-----------------------------------------------------------------+ |
|                                                                     |
|                       Network Entity                                |
+---------------------------------------------------------------------+

Andre Asselin

                    John Hufferd                                                                                                      
                                         To:     Andre Asselin/Raleigh/IBM                                                            
                    11/06/2001           cc:     [email-masked]                                                                      
                    03:33 PM             From:   John Hufferd/San Jose/IBM@IBMUS                                                      
                                         Subject:     Re: iSCSI: resend of diagram from 2.5.1(Document link: Andre Asselin)           

                                                                                                                                      

Andre,

.
.
.
John L. Hufferd

                Andre Asselin                          
                11/06/2001 07:38 AM                    

(original)
   ----------------------------IP Network---------------------
         |               |                    |

(updated)

    ----------------------------IP Network---------------------
         |              |                       |

Andre Asselin

---

From: "John Hufferd" <[email-masked]>
Date: Thu, 8 Nov 2001 11:59:06 -0800

Andre,
I think it would be more correct if the Session block was included within
the SCSI Port Block.

.
.
.
John L. Hufferd

                Andre Asselin                          
                11/07/2001 08:27 AM                    

To:   John Hufferd/San Jose/IBM@IBMUS
cc:   [email-masked]
From: Andre Asselin/Raleigh/IBM@IBMUS
Subject:  Re: iSCSI: resend of diagram from 2.5.1  (Document link: John
      Hufferd)

John,
     How's this look?

    ----------------------------IP Network---------------------
         |              |                       |

Andre Asselin

                    John Hufferd                                                                                
                                         To:     Andre Asselin/Raleigh/IBM                                      
                    11/06/2001           cc:     [email-masked]                                                
                    03:33 PM             From:   John Hufferd/San Jose/IBM@IBMUS                                
                                         Subject:     Re: iSCSI: resend of diagram from 2.5.1(Document link:    
                                         Andre Asselin)                                                         

                                                                                                                

Andre,

.
.
.
John L. Hufferd

                Andre Asselin                          
                11/06/2001 07:38 AM                    

(original)
   ----------------------------IP Network---------------------
         |               |                    |

(updated)

    ----------------------------IP Network---------------------
         |              |                       |

Andre Asselin