RE: SCSI URL scheme [WAS: Re: iSCSI: 2.2.6. Naming & mapping]

[Robert Snively <rsnively@Brocade.COM>]

Sorry Dan,

I am not sure the analogy is valid:

>  
>  2) The URL is really an arbitrary length base-40ish numeral.  The
>  infrastructure is already in place and well tested with HTTP URLs.

The referencing is reversed.  In the case of the HTTP, the registered
value is the domain and the naming below the domain is at the pleasure
of the domain owner.  There is a 3 to 4 order of magnitude difference
between the number of logical units being considered and the number
of domains referenced in HTTP URLs.

>  
>  3) Once the URL is decoded ("Robert Smith, in Seattle, on 
>  Broad St, next to
>  the donut store") it becomes a numeric address---probably a 
>  32-bit integer
>  on most systems.  Then you can address the TCP reference 
>  number plus the
>  LUN to access your device.
>  

HTTP is really:

	Seattle: as the registered domain,
	and Broad Street/donut store/Robert Smith as a device specific
	location.

What SCSI wants is:

	Robert Smith:  as the registered entity
	and Broad Street/donut store/Seattle as one way to get to him
	while 2nd street/around the corner from the restaurant/Seattle
	as a second way to get to him.