Mike, > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Mike Christie > Sent: Monday, January 03, 2011 12:48 PM > To: [email protected] > Cc: Rustad, Mark D; [email protected] > Subject: Re: DCB support for iSCSI > > So you are thinking that you would have one interface on the > initiator that is connected to 2 targets portals, and the > connection to each target portal would need a different priority? > That sounds like something that would happen.
I don't know myself if it could be a "need" or if it only might be a "want". > So would then the iscsi query lldpad with the interface and > application info. Then lldpad sends the priority mask. iscsi then > looks up user specified info (a target address,port,interface to > priority map) and then set the priority? Yes. At least that seemed like the most potentially valuable way to use the priority mask returned from lldpad. Of course if the returned mask only has a single bit, then there is no opportunity to further distinguish priorities. When multiple bits are returned, then additional information available to iscsid could be used to control that. In my initial work I believe that I will ignore this possibility and simply set the highest priority indicated in the mask, but know that the opportunity exists for more specific control by coordinating the DCB application priority assignment with some iscsi configuration. When the additional work is done, I would suggest that the iscsi priorities used in this context simply be an offset into the mask. That is, 1 would be the highest in the mask, 2 the next-to-highest and so forth. That way, the DCB configuration could change and iscsid would still do something sensible. -- Mark Rustad, [email protected] -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=en.
