Combined initiator & target names in SAM-2
Robert.Elliott at COMPAQ.com
Sat Nov 10 14:00:14 PST 2001
* From the T10 Reflector (t10 at t10.org), posted by:
* "Elliott, Robert" <Robert.Elliott at compaq.com>
> -----Original Message-----
> From: Peter Johansson [mailto:PJohansson at acm.org]
> Sent: Friday, November 09, 2001 2:44 PM
> Subject: Re: Combined initiator & target names in SAM-2
> * From the T10 Reflector (t10 at t10.org), posted by:
> * Peter Johansson <PJohansson at ACM.org>
> At 08:19 PM 11/9/2001 +0000, Jim Hafner wrote:
> >I think the sense of the WG was that there was no compelling
> reason to have separate names [...]
> Jim, since you and the WG seem ambivalent about two names vs.
> one, I claim a compelling reason to keep the names distinct.
> SBP has a 64-bit initiator name (or is it ID? I think they're
> one and the same in SBP) BUT a 88-bit target name. A node
> (similar, in some ways, to an FC port) is restricted to
> one initiator but may have many targets.
> Since functionality of initiator and target is completely
> separable, why would one wish to model them in the same
> name space?
In the new SCSI parlance, you're referring to the port names,
not the initiator device names that the WG was discussing.
initiator = initiator port
target = target port
See 01-084r4 for tables showing how these terms apply to
various protocols including SBP. The only protocol that
has attempted to provide a device name so far is iSCSI, and
its target/initiator devices can share one name.
Rob Elliott, Compaq Server Storage
Robert.Elliott at compaq.com
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