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2 Hálózatok üzleti tervezése hogyan tervezzünk, ha eddig is jó volt... Rab Gergely HP ESSN Technical Consultant
3 IT sprawl has business at the breaking point 70% captive in operations and maintenance Complex and inefficient Over-provisioned, underutilized Low productivity Business innovation throttled to 30% Long delay to business value Unpredictable service levels Business agility constrained 3 HP Research
4 Meet the Challengers iscsi NAS FC SAS FCoE
5 Trends in the Data Center Server virtualization - according to IDC: Growth of virtualized servers to exceed that of physical servers Reduce power consumption Servers are becoming dense Processing power: multi-core servers Blade server growth Higher speed networks Fibre Channel from Gb/s, eventually to 16 Gb/s Ethernet from 100 Mb/s 1Gb/s 10 Gb/s moving to 40 GbE 100 GbE
6 What s happening in the FC space? 8Gbps FC & Storage Virtualization In the Server/OS In the Array In the Network
7 iscsi
8 Whats happening in the iscsi space? iscsi is being considered as a viable alternative SAS iscsi adoption in the industry iscsi & Storage Virtualization P4000 SAN Solutions has successfully established itself as a viable offering. SATA 10 Gbit Ethernet P4000
9 Why iscsi? HP understands that iscsi and FC are complementary Many servers not connected to SAN in a Data Center because FC SAN connectivity is expensive Front-end Web server iscsi Storage iscsi LAN Application Server Cost effective Easier and full featured Strong integration with server virtualization FC gateway SAN Back-end DB Server Distance limitations FC Storage
10 HP StorageWorks iscsi products X1000/X3000 Microsoft iscsi Software Target MSA2000i & P2000 FC/iSCSI combo Native iscsi target EVA iscsi Connectivity Option (mpx200) iscsi gateway - Add application servers in branches with iscsi to existing FC SAN Server Tiering based on storage connectivity P4000 Full featured iscsi SAN Replication, thin provisioning, etc
11 Serial Attached SCSI (SAS) SAS is the new DAS
12 What is SAS? Serial-Attached SCSI (SAS) Point-to-point serial protocol that replaces parallel SCSI 6.0 Gb/s speeds Server connectivity provide by SAS HBAs SAS Disk Drive and internal SAS Cable Compatible with native SAS and SATA hard disk drives SAS Array and 4x SAS Cable
13 SAS Storage Solutions Blade Server With P700m SAS mezz card SAS Switches X9720 has a SAS backend Zoned DAS using MDS600 JBOD Shared storage with the MSA 2000sa
14 SAS connectivity Benefits of SAS connectivity low $ : Gb/s : GB ratio High 6Gb/s Ideal storage for server administrators Application Centric Storage Business Value Reduces TCO Avoids governace issues & costs by removing dependancy on SAN
15 Technology Comparison FC iscsi SAS Overview Optimum performance, reliability & availability Reduces expense and complexity of SAN at an overhead Near fibre channel throughput, but low cost. Performance High performance 8Gbp/s Acceptable performance 1Gbp/s Near FC performance 6Gbp/s Distance Up to 10km Unlimited Up to 10m Scalability Excellent Very good Limited Pricing High cost infrastructure Low cost infrastructure Similar to iscsi
16 Converged Networks CEE & FCoE
17 Why Converged Networks? What are the benefits? SAN A Reduced server ports Fewer cables Reduce switch ports Reduced cabling Fewer adapters Reduced power consumption Increased speed of links Increased utilization of links Fewer switches CEE switches SAN B LAN
18 What is needed for a Converged Network? Fibre Channel over Ethernet (FCoE) Lossless Converged Enhanced Ethernet (CEE) Converged Network Adapter (CNA) Switches & Interconnects Target Storage Converge traffic at the server Replaces NICs, HBAs Converge traffic over CEE. Split to connect to legacy networks or connect to new FCoE switches and targets Replace traditional Ethernet and FC switches Natively connects to FCoE/CEE networks Replace traditional FC storage
19 Ethernet Header FCoE Header FC Header CRC EOF FCS What is Fibre Channel over Ethernet? INCITS T11.3 FC-BB-5 FC encapsulated in new Ethernet transport FC-4 FC-3 Fibre Channel Services IP Legacy Ethernet Encapsulation Layer 3 Layer 2 CEE Layer Transport 1 Legacy Ethernet Today FCoE FC Payload FC-2 FC-1 FC-0 Fibre Channel Today Ethernet Frame, Ethertype = FCoE=0x8906 Same as a physical FC frame Fibre Channel Transport Control information: version, ordered sets (SOF, EOF)
20 Industry path to convergence Enclosure & Top-of-rack Top-of-rack enclosure aggregation End-of-row rack aggregation End-to-end CEE/FCoE 1 hop 2 hop Multi-hop FCoE CEE Final QCN & PFC ETS & DCBX Ratified Final Ratified Next Gen Products Final Ratified TRILL Final Ratified
21 What are the Ethernet enhancements for CEE? Feature Priority-based Flow Control (PFC) IEEE 802.1Qbb Enhanced Transmission Selection (ETS) IEEE 802.1Qaz Benefit Lossless network - enables storage and networking traffic types to share a common CEE link without interference Bandwidth Management - by prioritization of different classes of traffic. Congestion Notification (QCN) IEEE 802.1Qau Data Center Bridging Exchange Protocol (DCBX) Transparent Interconnection of Lots of Links (TRILL) End-to-end flow control lossless flows from persistent, long congestion Ensures compatible parameters between link partners by communicating ETS, PFC Settings Recovers bandwidth, multiple active paths; no spanning tree
22 What are the realities? Convergence aims to reduce LAN & SAN costs but Maturity Interoperability among vendors FCoE will require new complex qualification matrix Scalability FCoE is not routable Governance Storage Admins vs Network Admins Infrastructure Requires significant Investment in new equipment cables switches etc. Initially I/O consolidation for servers, not storage.
23 HP Virtual Connect FlexFabric Use Model HP c-class BladeSystem Enclosure Blade Servers (w/ FlexFabric Adapter) HP Virtual Connect FlexFabric Module (internal) CEE/FCoE FC Ethernet LAN Industry Standard Ethernet L2/L3 SAN Brocade, Cisco, QLogic IP Storage NAS, iscsi Considerations: Virtual Connect FlexFabric module does not support FCoE uplinks (i.e. no multi-hop FCoE support)
24 HP A5820/FCoE Module Use Model Rack mount servers w/cnas Blade servers w/pass-thru+cnas 10Gb CEE/FCoE CEE/FCoE FC Ethernet HP A5820 w/fcoe Module (FCoE ToR Switch) LAN Industry Standard Ethernet L2/L3 IP Storage NAS, iscsi SAN B-series, H-series, C-series Considerations: 5820/FCoE does not support FCoE uplinks (i.e. no multi-hop FCoE support)
25 Converge First At The Server Edge The server edge is most complex Far less complexity beyond server edge Core Switch Blades with Virtual Connect FlexFabric Most cables connect servers to edge (access) switches Most switches connect to servers Most data traffic is server to server Many workloads sharing one edge More NICs to connect More switches to connect More cables and clutter
26 10 Gigabit Ethernet Physical Media Transport elements enable new technologies Mid 1980s Mid 1990 s Early 2000 s Late 2000s SFP+ to SFP+ 10Mb 100Mb 1Gb SFP+ Cu 10Gb UTP Cat 3 UTP Cat 5 UTP Cat 5 SFP Fiber X2 SFP+ Cu (BER better than 10 ) -18 SFP+ Fiber Cat 6/7 Technology Cable Distance Power (each side) Transceiver Latency (link) SFP+ CU Copper Twinax 10m ~0.1W ~0.1ms SFP+ USR ultra short reach MM OM2 MM OM3 10m 100m 1W ~0 SFP+ SR short reach MM 62.5mm MM 50mm 82m 300m 1W ~0 10GBASE-T Cat6 Cat6a/7 Cat6a/7 55m 100m 30m ~8W ~8W ~4W 2.5ms 2.5ms 1.5ms
27 FlexFabric Scale resources to meet any workload demand Within the system Blade Link Linear scaling from 2-8 sockets Across the network Dynamically managed Crossbar Fabric Fault-tolerant flexible scaling Virtual Connect Wire-once, changeready connectivity Matrix operating environment, delivered by Insight Dynamics
28 Total Cost of Ownership (TCO)
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34 Outcomes that matter.
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