RE: iSCSI Name Formats (IQN and EUI)

["KRUEGER,MARJORIE (HP-Roseville,ex1)" <marjorie.krueger@hp.com>]

Title: Message

Have you read the Naming and Discovery draft - http://www.ietf.org/internet-drafts/draft-ietf-ips-iscsi-name-disc-08.txt ? 

 

As for "switches that connect FC and iSCSI networks" I assume you're thinking of iSCSI-FC gateways?  That's a slippery slope, and has been previously discussed on this reflector, look thru the archives.    A gateway must export world-wide unique names in the iSCSI domain - if a gateway uses the EUI format and sticks in an FC device's WWN, another gateway connected to the same SAN would construct the same name and violate name uniqueness (and cause other problems at the SCSI layer).

 

Marjorie Krueger

Hewlett-Packard

-----Original Message-----
From: Hutchinson_Adam@emc.com [mailto:Hutchinson_Adam@emc.com]
Sent: Friday, October 18, 2002 6:16 AM
To: ips@ece.cmu.edu
Subject: iSCSI Name Formats (IQN and EUI)

Questions regarding the two iSCSI name formats.

 

Are there advantages and disadvantages for the IQN and EUI name formats defined in the iSCSI specification? Should one format be preferred over the other? Is it possible that the EUI names could be preferred in environments with switches that connect Fibre Channel and iSCSI networks? Could the iSCSI EUI be used as part of a WWN for Fibre Channel in such an environment? If it is unforeseeable at this time whether one format has any advantage over the other, should it be possible to have an iSCSI device that can be identified by either name format? Perhaps the name format to use would be something configurable by the user, but only one name format would be used at a time.

 

Thanks,

_____________________________

Adam Hutchinson

CLARiiON/EMC Corp

Phone:  508.382.5938

Fax:      508.382.7913

Email:    hutchinson_adam@emc.com