Questions for the audience:How many have FC today?How many have iSCSI today?How many have 10GbE today?
WHY need it?WHAT it is?HOW it will happen!
Let’s look at the rack server environment today. In today’s environment… Servers connect to the LAN with multiple network interface cards (NICs)Servers require HBAs to connect to an existing Fibre Channel SANMany of today’s data centers are running at 1 Gigabit Ethernet speedMultiple server adapters require more power and cooling costs
Buy the “best available” grade of cable to help future proof. OM4 under discussion (buy OM3 today). Cat6a available today.For 2008 FCoE deployments, Twinax helps meet time-to-market needs with a low power/cost solution until 10GBase-T has more time to mature.Very few customers have deployed 10Gb Ethernet. Some may question adding a new cabling infrastructure, but should be limited to early “Phase 1” testing and deployments.
FC has a large and well managed install base (EMC has shipped over 4M Connectrix switch ports); $10B install base according to BrocadeDrive for I/O consolidationiSCSI strength was to use existing network infrastructure and skill set to offer lower-cost connectivity for consolidation, but management of large iSCSI environments is cumbersomeNot rip and replace or new management paradigm, but incremental transition
Replication first (iFCP EOL)IB = special transport layer and new management; used in HPCFCoE is layer 2 only, so can use FCIP under a shared FC management with FC+FCIP+FCoE; or use Ethernet native replication from Symm/CLARiiON
Same host drivers, FC management of storage.With motion – bubble analogy of FC in Jumbo Frame Ethernet and “popped” in CNS.Discuss CNA vs. NIC (NIC on 2nd click) for deployment options. CNA has hardware offload, NIC does not.
FCoE is getting traction because it maintains the channel-like performance of FC and low protocol overhead. Note that FCoE is Data Center only (Layer 2 – no routing).Encapsulation (not bridging) to attach to FC
Discussion after arrows gone – CNA (not NIC) for 1st generation since need FC traffic to go to hypervisor as FC, not through Vswitch (not lossless) or in guest.
Also useful for iSCSI
Also useful for iSCSI
FCoE is NOT the death of iSCSI (just like iSCSI was not the death of FC) – plenty of room for both; both add to the overall SAN market (meet the needs of the growing virtualization market – want more networked devices).This is also the place to say reassuring things about EMC as \"arms supplier\" in the protocol wars – whatever protocol fits your needs (customer), we (EMC) are the experts.
Transcript of "Fibre Channel over Ethernet (FCoE), iSCSI and the Converged Data Center"