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Abstract .............................................................................................................................................. 2

 

Introduction ......................................................................................................................................... 2

 

Traditional data center topology ............................................................................................................ 2

 

Converged fabrics with 10 Gigabit Ethernet ........................................................................................... 3

 

iSCSI .............................................................................................................................................. 3

 

Fibre Channel over Ethernet .............................................................................................................. 4

 

FCoE for convergence in the data center ................................................................................................ 5

 

Migrating to converged fabrics .......................................................................................................... 5

 

Data center bridging ........................................................................................................................ 6

 

Virtualization in converged networks ...................................................................................................... 8

 

Server virtualization .......................................................................................................................... 8

 

NIC virtualization ............................................................................................................................. 8

 

Flex-10 for Virtual Connect ................................................................................................................ 8

 

Summary ............................................................................................................................................ 9

 

For more information ............................................................................................................................ 9

 

Call to action ...................................................................................................................................... 9

 

Converged fabrics: Emerging technologies 
for simplifying data center infrastructure 

technology brief 

Summary of Contents for A7446B - SFP Transceiver Module

Page 1: ... convergence in the data center 5 Migrating to converged fabrics 5 Data center bridging 6 Virtualization in converged networks 8 Server virtualization 8 NIC virtualization 8 Flex 10 for Virtual Connect 8 Summary 9 For more information 9 Call to action 9 Converged fabrics Emerging technologies for simplifying data center infrastructure technology brief ...

Page 2: ...tructure costs It consolidates all individual network types onto a single fabric in contrast to the more complex and costly approach of using proprietary fabrics for IPC and storage The converged fabrics solution is the common interconnect and can be either Infiniband IB or 10GbE HP expects converged fabrics technology to significantly lower infrastructure and management costs without sacrificing ...

Page 3: ... protocol While the target is usually a drive enclosure or another computer it can also be any other storage device that supports the iSCSI protocol such as a tape drive The iSCSI stack at both ends of the path encapsulates SCSI block commands into Ethernet packets for transmission over IP networks Figure 2 illustrates a message exchange between an initiator and a target The process begins when an...

Page 4: ...formation Technology Standards INCITS T11 technical committee FCoE relies on flow control to recognize that a buffer is almost full and to request that the sender stop transmission until the buffer has emptied and transmission can start again FCoE is based on Enhanced Ethernet EE sometimes referred to as Data Center Ethernet DCE or Converged Enhanced Ethernet CEE The Institute of Electrical and El...

Page 5: ...trol FCoE for convergence in the data center HP is enthusiastic about the possibilities FCoE offers for network convergence FCoE has the potential to scale in most IT environments using the same physical Ethernet layer and common management applications in use today Migrating to converged fabrics The traditional data center model uses multiple HBAs and NICs in each server to communicate with vario...

Page 6: ...rnet link Congestion Notification CN which will provide congestion management to reduce data loss Priority based Flow Control PFC which will provide a link level flow control mechanism to prevent loss due to congestion Enhanced Transmission Selection ETS which will provide a common management framework to assign bandwidth to different traffic classes A discovery and capability exchange protocol to...

Page 7: ...t will occur as existing data centers are updated or as new ones are built Eventually only a single pair of redundant CNAs will be required per server Separate FC 10GbE and IB switches will be replaced by converged network switches Figure 6 Figure 6 Converged fabrics deployment phases 2 and 3 ...

Page 8: ...ed Server virtualization technologies for x86 based HP BladeSystem and HP ProLiant servers at http h20000 www2 hp com bc docs support SupportManual c01067846 c01067846 pdf NIC virtualization For HP BladeSystem c Class server blades the HP VC Ethernet Modules allow IT administrators to interconnect multiple modules and define uplinks to their data center Ethernet switches The VC Ethernet Modules al...

Page 9: ... Server virtualization technologies for x86 based HP BladeSystem and HP ProLiant servers technology brief http h20000 www2 hp com bc docs support SupportManu al c01067846 c01067846 pdf 10 Gigabit Ethernet technology for industry standard servers technology brief http h20000 www2 hp com bc docs support SupportManu al c01608915 c01608915 pdf HP Flex 10 technology technology brief http h20000 www2 hp...

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