On Thu, 2010-06-10 at 13:35 -0700, Nicholas A. Bellinger wrote: > On Thu, 2010-06-10 at 13:36 +0400, Vladislav Bolkhovitin wrote: > > Christopher Barry, on 06/10/2010 03:09 AM wrote: > > > Greetings everyone, > > > > > > Had a question about implementing mc/s using open-iscsi today. Wasn't > > > really sure exactly what it was. From googling about, I can't find any > > > references of people doing it with open-iscsi, although I see a few > > > references to people asking about it. Anyone know the status on that? > > > > http://scst.sourceforge.net/mc_s.html. In short, there's no point in it > > worth implementation and maintenance effort. > > Heh, this URL is a bunch of b*llshit handwaving because the iscsi-scst > target does not support the complete set of features defined by > RFC-3720, namely MC/S and ErrorRecoveryLevel=2, let alone asymmeteric > logical unit access (ALUA) MPIO. Vlad, if you are so sure that MC/S is > so awful, why don't you put your money where your mouth is and start > asking these questions on the IETF IPS list and see what Julian Satran > (the RFC editor) has to say about them..? > > Hmmmm...? >
Btw, just for those following along, here is what MC/S and ERL=2 when used in combination (yes, they are complementary) really do: http://linux-iscsi.org/builds/user/nab/Inter.vs.OuterNexus.Multiplexing.pdf Also, I should mention in all fairness that my team was the first to implement both a Target and Initiator capable of MC/S and ErrorRecoveryLevel=2 running on Linux, and the first target capable of running MC/S from multiple initiator implementations. Unfortuately Vlad has never implemented any of these features in either a target or initiator, so really he is not in a position to say what is 'good' or what is 'bad' about MC/S. Best, --nab -- 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.
