Re: iSCSI: NopIn in ping mode can contain data?

["Julian Satran" <Julian_Satran@il.ibm.com>]

Within an exchane - everytthing an initiator sees is sollicited and expected. Julo
----- Forwarded by Julian Satran/Haifa/IBM on 24-01-02 09:31 -----

Tow Wang <Tow_Wang@adaptec.com> Sent by: owner-ips@ece.cmu.edu 23-01-02 20:47

To:        ips@ece.cmu.edu         cc:                 Subject:        Re: iSCSI: NopIn in ping mode can contain data?

Hello.

For negotiation you'd use login and text commands; we have said before that
targets can offer text key=value pairs out of their own initiative.

I don't see your reasoning here, and can't understand your second sentence.

Tow

Ajit Aryan wrote:

> Julo,
> By this we should be able to say one thing, NOPIn in ping mode can
> contain data. What every care has to be taken about the data. Now, what
> should be the solicited data? In sense, the data which the initiator
> could use for tuning, negotiation etc...??
>
> Aryan
>
> Julian Satran wrote:
>
> >
> > Rod,
> >
> > Initiators are usually build under the assumption that they are "in
> > control" - e.g., no unsolicited data.
> > Having them prepare for unsolicited data without good cause does not
> > seem a good idea.
> >
> > Julo
> >
> >
> > "Rod Harrison" <rod.harrison@windriver.com>
> >
> > 21-01-02 17:31
> >
> >
> >         To:        Julian Satran/Haifa/IBM@IBMIL, <ips@ece.cmu.edu>
> >         cc:
> >         Subject:        RE: iSCSI: NopIn in ping mode can contain data?
> >
> >
> >
> >
> >
> > Julian,
> >
> >                 What's the reason behind preventing the target sending
> > ping data? I
> > would have thought it would be just as much use for a target as it is
> > for an initiator.
> >
> >                 - Rod
> >
> > -----Original Message-----
> > From: owner-ips@ece.cmu.edu [mailto:owner-ips@ece.cmu.edu]On Behalf Of
> > Julian Satran
> > Sent: Saturday, January 19, 2002 3:23 PM
> > To: ips@ece.cmu.edu
> > Subject: Re: iSCSI: NopIn in ping mode can contain data?
> >
> >
> >
> > No  data - will indicate this in 10 - Julo
> >
> >
> > Tow Wang <Tow_Wang@adaptec.com>
> > Sent by: owner-ips@ece.cmu.edu
> > 16-01-02 01:10
> >
> >        To:        ips@ece.cmu.edu
> >        cc:
> >        Subject:        iSCSI: NopIn in ping mode can contain data?
> >
> >
> >
> >
> > Hello everybody.
> >
> > 1) When a target sends out a NopIn as a ping, is it allowed to contain
> > a
> > data segment?
> > 2) If yes,
> >   a) why would anyone send data along?
> >   b) must the initiator echo back the data?
> >
> > I haven't found a clear answer in draft 9. Thanks for any
> > clarifications.
> > --
> > Tow Wang
> > Adaptec Software Engineer
> >
> >
> >

--
Tow Wang
Adaptec Software Engineer       Telephone: 408 957 4838
Mail stop 46                               800 869 8883 x4838
691 South Milpitas Boulevard    Fax:       530 686 8023
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