Re: Targets that don't want to support discovery

"Eddy Quicksall" <[email protected]> Thu, 11 May 2006 09:56:17 -0400

Newsgroups	gmane.ietf.ips
Message-ID	<[email protected]>

I can't find anything in the spec that says a discovery session can't be redirected. I know that it is logical that redirection would require a TargetName but I don't see that in the spec either.

(but I may be missing those parts so please point out the reference).

Eddy
----- Original Message -----
From: William Studenmund
To: Eddy Quicksall
Cc: [email protected]
Sent: Thursday, April 27, 2006 7:09 PM
Subject: Re: [Ips] Targets that don't want to support discovery

On Apr 27, 2006, at 11:50 AM, Eddy Quicksall wrote:

Appendix D says:
A system that contains targets MUST support discovery sessions on
each of its iSCSI IP address-port pairs, and MUST support the
SendTargets command on the discovery session

Suppose I have targets A, B and C. I want target A to be the only target that can support discovery. Login to targets B and C will be redirected by A.

This is fine except for the fact that once the redirection occurs the initiator has the address of B and C and could open a discovery session to B or C.

I'm thinking that I could have B and C redirect to A for any discovery session hence A would become the only target to support discovery (but that would "break the law").

I'm wondering how the community thinks this should be handled.

I have a feeling that that'd be breaking the rules.

Why do you want to do this?

Another option is that while ports B and C should support discovery sessions, they don't have to do it very efficiently. It's fine if they use some sort of proxy to internally route the commands to A for processing. So only A is very smart, but discovery works everywhere.

Take care,

Bill

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