HP DL360 10 Gigabit Ethernet technology for industry-standard servers - Page 7

Processor, Memory

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using a single switching technology and a single set of adapters that meet the requirements of all four types of data: LAN, IPC, management, and storage. Figure 2. Transition from multiple networks to a converged network Multiple Data Networks Processor Memory Converged Data Network Processor Memory I/O II//OO II//OO II//OO II//OO LAN/IP Storage IPC Management Converged Fabric II//OO II//OO II//OO II//OO Compared to alternatives like Fibre Channel or InfiniBand, Ethernet is already the dominant fabric and offers performance approaching the alternatives at a lower cost. A converged Ethernet switching fabric for all data center applications is expected to serve as the basis for future data center consolidation and architectural evolution. With Ethernet and IP as the unified switching fabric, administrators will also have the maximum flexibility in selecting network management tools. An IP fabric can facilitate deployment of a wide range of data center security measures implemented as stand-alone Ethernet appliances, within Ethernet switches, or even in multifunction HP 10GbE network adapters. Currently, two of the most promising transport standards for 10GbE are iSCSI and Fibre Channel over Ethernet (FCoE). iSCSI iSCSI is a standard that implements the SCSI protocol over a TCP/IP network. While iSCSI can be implemented over any TCP/IP network, the most common implementation is over 1 and 10 GbE. iSCSI serves the same purpose as Fibre Channel in building SANs, but iSCSI avoids the cost, complexity, and compatibility issues associated with Fibre Channel SANs. Because iSCSI is a TCP/IP implementation, it is ideal for new field deployments where no FC SAN infrastructure exists. An iSCSI SAN is typically comprised of software or hardware initiators on the host connected to an isolated Ethernet network and some number of storage resources (targets). While the target is usually a hard drive enclosure or another computer, it can also be any other storage device that supports the 7

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using a single switching technology and a single set of adapters that meet the requirements of all four
types of data: LAN, IPC, management, and storage.
Figure 2.
Transition from multiple networks to a converged network
Processor
Processor
Memory
Memory
I/O
I/O
Processor
Processor
Memory
Memory
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Multiple Data Networks
Converged Data Network
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Storage
LAN/IP
IPC
Management
Converged Fabric
Compared to alternatives like Fibre Channel or InfiniBand, Ethernet is already the dominant fabric
and offers performance approaching the alternatives at a lower cost.
A converged Ethernet switching fabric for all data center applications is expected to serve as the
basis for future data center consolidation and architectural evolution. With Ethernet and IP as the
unified switching fabric, administrators will also have the maximum flexibility in selecting network
management tools. An IP fabric can facilitate deployment of a wide range of data center security
measures implemented as stand-alone Ethernet appliances, within Ethernet switches, or even in
multifunction HP 10GbE network adapters.
Currently, two of the most promising transport standards for 10GbE are iSCSI and Fibre Channel over
Ethernet (FCoE).
iSCSI
iSCSI is a standard that implements the SCSI protocol over a TCP/IP network. While iSCSI can be
implemented over any TCP/IP network, the most common implementation is over 1 and 10 GbE.
iSCSI serves the same purpose as Fibre Channel in building SANs, but iSCSI avoids the cost,
complexity, and compatibility issues associated with Fibre Channel SANs. Because iSCSI is a TCP/IP
implementation, it is ideal for new field deployments where no FC SAN infrastructure exists.
An iSCSI SAN is typically comprised of software or hardware initiators on the host connected to an
isolated Ethernet network and some number of storage resources (targets). While the target is usually
a hard drive enclosure or another computer, it can also be any other storage device that supports the