Re: iSCSI sessions: Let's try again

[Matt Wakeley <matt_wakeley@agilent.com>]

Douglas Otis wrote:

> > Reasons requiring 2 tcp connections per iSCSI session (one for
> > commands the
> > other for data):
> >
> > 1- It allows a target to temporarily flow control commands from
> > the initiator
> > while still allowing data to continue on the "data" connection (allowing
> > commands to complete so that the flow control can be opened again).
>
> How do you go about managing the buffers of these connections using TCP?

Doug, even you know that if you stop reading <in this case the commands> from
the TCP stream, TCP will eventually stop the initiator from sending commands.
Thus, if the SCSI command queue fills up, the target stops reading from TCP,
which eventually shuts down the initiator from sending more commands.

-Matt