Re: iSCSI protocol - use of SendTargets

For myself, I don't mind such questions. In this case I think your basic question was "why" not "how".

Eddy
  ----- Original Message ----- 
  From: Parav Pandit 
  To: Julian Satran ; Sandars, Ken 
  Cc: [email protected] ; Parav Pandit ; Eddy Quicksall 
  Sent: Monday, July 02, 2007 2:20 AM
  Subject: RE: [Ips] iSCSI protocol - use of SendTargets


  Hi all,

  I apologize for asking such basic question on this mailing list. I would read the iSCSI RFC 3720 by myself. 

  I thought of sharing and gaining knowledge through this mailing list faster, but now I understand it may not be the perfect for starters.

  Thanks a lot for your the kind support, suggestions and information.

  Regards,
  Parav Pandit




  Julian Satran <[email protected]> wrote:

    Hard to comment on your statement. Sounds more like a group "denigration" of the authors - and I don't know about any of us doing what you suggest. 
    I am a bit uneasy about this statement - to say the least. 

    Julo 


          "Sandars, Ken" <[email protected]> 
          02/07/07 00:35  To Julian Satran/Haifa/IBM@IBMIL, "Eddy Quicksall" <[email protected]>  
                cc <[email protected]>, "Parav Pandit" <[email protected]>  
                Subject RE: [Ips] iSCSI protocol - use of SendTargets 


               
               

         



    Hi Julo, 
      
    I don't know how many third party iSCSI 'Big Dummies' guides are out there, however, since RFC3720 succinctly describes the fundamentals of the iSCSI model I recommended that as the first choice. 
      
    I'd have no objection if the author of RFC3720 wanted to advertise his publication here! ;-) 
      
    Cheers 
    Ken 
      


----------------------------------------------------------------------------
    From: Julian Satran [mailto:[email protected]] 
    Sent: Saturday, 30 June 2007 19:04
    To: Eddy Quicksall
    Cc: [email protected]; Sandars, Ken; Parav Pandit
    Subject: Re: [Ips] iSCSI protocol - use of SendTargets


    Ken - what exactly does "Before any author shamelessly plugs their iSCSI publications, I suggest you have a quick re-read of RFC3720. " reffer to? - Julo 

          "Eddy Quicksall" <[email protected]> 
          29/06/07 15:24  
                To "Sandars, Ken" <[email protected]>, "Parav Pandit" <[email protected]>, <[email protected]>  
                cc 
               
                Subject Re: [Ips] iSCSI protocol - use of SendTargets 



               
               

         




    I agree with Ken on the reading below. You may have alredy figured this out but just to try to give a simple answer to your question ... suppose you have built a box that has several targets each with different ip addresses; the user at the initiator could just give one of the ip addresses as the "discovery address"; this could be the address of only one of the targets; the initiator can then log on as a discovery session using that address and use SendTargets to find the names and addresses of all targets. 
     
    Eddy 
    ----- Original Message ----- 
    From: Sandars, Ken 
    To: Parav Pandit ; [email protected] 
    Sent: Thursday, June 07, 2007 5:58 PM 
    Subject: RE: [Ips] iSCSI protocol - use of SendTargets 

    Hi Parav, 
     
    Before any author shamelessly plugs their iSCSI publications, I suggest you have a quick re-read of RFC3720. 
     
    In particular, section 3.4 pages 37-40 cover some really important concepts that I think will help your understanding. Then jump to the start of section 3, page 17 for more concepts and definitions. 
     
    The specifics of the SendTargets command are in Appendix D. 
     
    HTH 
    Ken 


----------------------------------------------------------------------------
    From: Parav Pandit [mailto:[email protected]] 
    Sent: Thursday, 7 June 2007 22:41
    To: [email protected]
    Subject: [Ips] iSCSI protocol - use of SendTargets

    Hi,

    I am new to iSCSI protocol and gearing up.
    Is this the right mailing list to ask questions related to  iSCSI protocol?

    if yes,

    1.  iSCSI target is identified by the network portal (IP + port).
    So once the iSCSI target is identified by the network portal and Login to it is successful, why do we need to ask for SendTargets command?
    TargetName and TargetAddress returned are immaterial (because we already know the target address to which we have logged-in), unless there are multiple addresses for them and failover is required used.
    Or it is used for communicating different TCP port on which initiators can send TUR, Inquiry, Read, Write commands?

    What is the expected information from the target in response to SendTargets command?

    Regards,
    Parav Pandit 

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