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Changes to targets/LUNs should be announced via
unsolicited SLP. Since we
are already pushing SLP, it makes sense to use it.
A target server utilizing
SLP in this manner would not need a long lived
discovery session around. As
far as 'pinging' the target via a NOP-OUT I'm
not sure of the intent?? If
one would like to determine if the target server
is up and running, this can
also be accomplished via standard protocols such
as SNMP. Is there currently
an iSCSI MIB object to determine the
health/status of a target server? MIB objects
could be used to
monitor the status / health of each session as
well.
-peter
Peter Mellquist
Seven-Systems
-----
Original Message -----
From: "Julian Satran" <Julian_Satran@il.ibm.com>
To:
<ips@ece.cmu.edu>
Sent: Friday,
October 26, 2001 12:38 AM
Subject: Re: iSCSI: NOPs on discovery
session
> Ron,
>
> We are defining a wire protocol so
that we should not be concerned if
> closing is mandatary or not.
>
An open discovery session could be used (with proprietary exchanges) to
>
announce new LUN and target creation.
>
>
Julo
>
>
>
>
> "Ron Cohen" <rcohen@eurologic.com>
> Sent by:
owner-ips@ece.cmu.edu
>
26-10-01 08:16
> Please respond to "Ron
Cohen"
>
>
>
To: "ips" <ips@ece.cmu.edu>
>
cc:
>
Subject: Re: iSCSI: NOPs on discovery
session
>
>
>
> This brings up an interesting
point:
>
> Is it intended that discovery sessions remain
open?
> Should an initiator close a discovery session after the
SendTargets
> command
> has completed?
> Should a target
request a logout and session closure if an initiator does
> not close the
session?
> What would the application of leaving a discovery session open
be?
>
> Ron
>
>
> ----- Original Message
-----
> From: "Ayman Ghanem" <aghanem@cisco.com>
> To: <ips@ece.cmu.edu>
> Sent: Friday,
October 26, 2001 4:29 AM
> Subject: iSCSI: NOPs on discovery
session
>
>
> > Julian,
> >
> > I am not
sure if this came up before, but we also need to include
> NOP-OUT
>
to
> > the set of commands allowed on the discovery session. An
initiator may
> keep
> > the discovery session active, and send
NOP-OUT to ping the target, or in
> > response to a target
ping.
> >
> > -Ayman
> >
>
>
>
>
>
>
>
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