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Just what is Virtual Connect?

The technology that brings benefits to everyone involved.

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Just what is Virtual Connect?


Virtual Connect is technology that rethinks how blade servers are connected to your LAN and SAN and brings benefits to everyone involved. It reduces cables and saves work for everybody—server, LAN and SAN administrators. And because you’ve virtualized the connections to the outside world, you can make changes without impacting other systems—or other departments.

Virtual Connect Flex-10 technology builds even more flexibility into each server blade to add 4x more NICs without more hardware, fine-tune bandwidth of each connection and cut network hardware costs up to 75%. Virtual Connect is the right technology at the right time to transform your infrastructure and uncover its full potential.

Virtual Connect Ethernet and Fibre Channel modules are interconnect options for HP BladeSystem c3000 and c7000 enclosures used in place of conventional pass-thru or managed switch modules. They abstract and pool the server-edge connections so they look like NICs and HBAs to the external LAN and SAN. This allows server administrators to independently manage server blades and their connectivity to, so you can maintain high-availability connections throughout your server racks as you securely administer Media Access Control (MAC) addresses and World Wide Names (WWN) for each server.

With HP Virtual Connect, you can connect and pre-assign all of the LAN MAC addresses and SAN WWNs that the server pool might ever need—at the same time that you wire the rack and enclosures. With Virtual Connect Flex-10 technology, you choose how many NICs are on each server and set the bandwidth of each NIC in increments of 100 Mb. Then, when each server blade is installed, the server administrator can quickly assign whatever LAN and SAN connections are needed for that server. No more coordinating with LAN and SAN administrators or waiting for them to be available. It , saves time, frees LAN/SAN resources, and gives your server administrator the ultimate flexibility to do what’s needed, when it’s needed.

If the server administrator needs to move that profile to a different bay, it’s done with a mouse click. If he needs to change the network connections on a profile, again, it is done with a few mouse clicks. Failing over to a spare server, moving a server from a development environment to a test environment (with different LAN and SAN connections), or moving a group of servers to a different application sub-network happens with a few mouse clicks by the server administrator.

HP Virtual Connect Flex-10 Ethernet Module


HP Virtual Connect Flex-10 Ethernet ModuleHP Virtual Connect Flex-10 Ethernet Module








HP Virtual Connect Fibre Channel Module with server side NPIV


HP Virtual Connect Fibre Channel Module with server side NPIVHP Virtual Connect Fibre Channel Module with server side NPIV

How does Virtual Connect save time and money?


Today, many users want to buy a rack, fill it with HP BladeSystem enclosures, wire it up, and then add server blades as they need them. This sounds very efficient, but they still have to engage LAN and SAN administrators every time they install a new server blade in an enclosure or replace existing servers. That takes a lot of scheduling, and wastes time for all departments involved.

With HP Virtual Connect, you can connect and pre-assign all of the LANs and SANs that the server pool might ever need—at the same time that you wire the rack and enclosures.

And with Virtual Connect Flex-10 technology, you choose how many FlexNICs are on each server and set the bandwidth of each NIC in increments of 100 MB. Then, when each server blade is installed the server administrator can quickly use the HP Virtual Connect Manager software or Command Line Interface to assign whatever LAN and SAN connections are needed for that server. No more coordinating with LAN and SAN administrators or waiting for them to be available, which saves time, frees LAN/SAN resources, and gives your server administrator the ultimate flexibility to do what’s needed, when it’s needed.

Server sparing: Fast and affordable

Today you have two choices: Buy and operate two servers for every one you need; or keep one spare for as many servers as you need, and then spend everyone’s time to get LAN and SAN administrators to adjust their networks when you need to replace a failed server.

HP Virtual Connect gives you the best of both alternatives. The built-in Virtual Connect Manager console allows you to spare 16 server blades with just one server, allowing the server administrator to quickly and independently assign LAN and SAN connections to replace any failed server. Virtual Connect Enterprise Manager lets you spare up to 1600 server blades while managing a whole data center full of enclosures from a single console. Individual servers or whole enclosures can be migrated, repurposed, recovered or shifted between workloads quickly and reliably.

Spend less when you need more than 2 NICs on a server

As companies roll out server virtualization to gain operational savings in their data centers, costs for networking virtual servers are spiraling out of control. The typical server hosting a virtual machine today on average needs 6 NICs. These connections combined with the extra switches and cables required quickly escalate network costs as well as add strain to network operations.

HP Virtual Connect Flex-10 is the world’s first technology to eliminate these extra networking costs. Virtual Connect Flex-10 technology allocates a single network port into four individual network connections. Customers can deploy more virtual servers on a consolidated network without having to replace existing networking equipment, reducing costs up to 66 percent.

How is it better than other choices?


Today, there are two conventional ways to connect server blades to outside data and storage networks —switches and pass-through modules—each with their own advantages and compromises. Pass-through modules are simple, but require too many expensive cables and create complexity. In almost all cases, pass-through modules are the most expensive option because of the cables and cost of uplink switch ports. Embedded blade switches cut the cables, but add more management tasks for LAN and SAN administrators and blur the lines between server, network and storage administrators.

With both pass- through modules and switches, multiple people are needed to perform very simple server tasks. Each time a server is added or replaced, it requires coordination between the storage, network and server administrators to complete it successfully—over and over again.

On the other hand, Virtual Connect modules deliver extreme flexibility for the server administrator to manage servers independently. This revolutionary approach to server I/O provides a simple view of your HP BladeSystem environment to the Ethernet and Fibre Channel networks, while relieving the server, storage and network administrators of their constant interdependence and frequent need for coordination.

Now, server administrators can focus their efforts on their areas of expertise and be more productive.

Further, the new HP Virtual Connect Flex-10 technology quadruples the number of NIC connections per NIC port, reducing network hardware needed by 75%, without adding managed switches to the data center. So you save on network costs and improve flexibility, without complicating LAN or SAN management. Basically, if your server needs more than two NICs, Virtual Connect Flex-10 will cost you less.

To compliment the Virtual Connect hardware modules, HP Virtual Connect Enterprise Manager (VCEM) provides a single console to discover and manage up to one hundred HP BladeSystem enclosures configured with Virtual Connect. A central database administers and controls all of your MAC addresses and World Wide Names which reduces the risk of address conflicts, and you can use group-based configurations to streamline enclosure administration and rapidly move network connections and their workloads across your organization for efficient deployment, systems maintenance, and failover to spare blade servers.
Cost GraphCost Graph

What is Virtual Connect Flex-10?

Virtual Connect Flex-10 technology is a hardware based solution that enables server administrators to partition each 10 gigabit Ethernet port into 4 and regulate the data speed of each partition. HP Flex-10 technology is available only with Virtual Connect (VC).

The Virtual Connect Flex-10 feature set enables VC to configure a single 10Gb network port of BladeSystem servers to represent four physical NIC devices, also called FlexNICs, with a total bandwidth of 10Gbps. These four FlexNICs appear to the operating system (OS) as discrete network interface controllers (NIC), each with its own driver. While the FlexNICs share the same physical port, traffic flow for each one is isolated with its own MAC address and virtual local area network (VLAN) tags between the FlexNIC and VC Flex-10 interconnect module. The bandwidth available to each FlexNIC is controlled by the server administrator through the Virtual Connect Manager interface.

Advantages from using Flex-10 technology are significant. The implementation cost and management burden of 10GbE infrastructure become more feasible. It is easier to aggregate multiple 1Gb data flows and fully utilize 10Gb bandwidth. The ability to adjust bandwidth for partitioned data flow is more cost efficient and easier to manage. The fact that Virtual Connect Flex-10 is hardware based but designed to compliment VC technologies, means that multiple FlexNICs are added without the additional processor overhead or latency associated with virtualization or soft switches. Significant infrastructure savings are also realized since additional server NIC’s and associated switches may not be needed. Each dual-port Flex-10 NIC supports up to 8 FlexNIC’s and each Flex-10 Interconnect Module can support up to 64 FlexNIC’s. Other switch options only support 16 NIC’s per module.

Is it good for small sites too?


With Virtual Connect Flex-10 the answer is yes. If your mid-size or smaller size site is running virtual machines that require more than two NICs then BladeSystem with Virtual Connect Flex-10 will save you money.
Cost GraphCost Graph

How can I build a better virtual machine environment?


Only HP has addressed connectivity as part of an overall virtualization strategy. More than point products, HP Virtual Connect works with other virtualization technologies to provide virtual connections for your virtual machines and a roadmap to future solutions.

Blade architectures provide operational cost savings, cable consolidation and power and cooling benefits to the Data Center. The latest blade servers give you increased processing and memory capacities along with the option of native 10 Gb network connections allowing greater numbers of VM’s per server. But with their density comes trade-offs in the number of NICs connections possible. Most blade servers, such as those from IBM, Dell, and Sun have a practical limit of 6 NIC connections. And for many blade servers, configuring 6 NICs means no room for Fibre Channel connections.

Now, more than ever, increased network connections per server are needed for virtual machine applications. For instance, many hypervisor vendors recommend 6 to 8 NICs per server. The good news? HP Virtual Connect Flex-10 is the world’s first technology to allocate 10 Gb Ethernet network bandwidth at the server edge to increase the number of NIC connections up to four-fold per NIC with a corresponding 75% reduction in NICs, switches and cables.

It also adds the first ever capability to fine-tune the bandwidth of each Flex-10 NIC to match the demands of your virtual servers and application workloads. Flex-10 reduces infrastructure costs by breaking the barriers of rigid network connections, speeds, and NIC ports providing unparalleled server scale-out, virtualization and network efficiency in the Data Center.

Traditionally, storage resources have been tied to a physical HBA and could not be provisioned to the virtual machines using SAN administrator’s tools of choice like zoning and selective storage presentation.

The HP Virtual Connect 4 Gb Fibre Channel Module with Server-Side NPIV removes the storage management limitation to a single HBA WWN on the physical server. Each virtual machine can have it’s own unique WWN and it remains associated with that virtual machine even as the virtual machine is dynamically moved. Now SAN administrators can manage and provision storage to virtual HBAs, up to 128 per server blade, with the same methods and quality of service as physical HBAs.

VC DiagramVC Diagram

Do HP's Virtual Connect modules work with Cisco's new Nexus switches?


YES - Virtual Connect (VC) interoperates with any industry standard Ethernet installation including the Nexus product line. Cisco is planning for Nexus to support Converged Enhanced Ethernet (industry calls this CEE; Cisco has version called DCE) with future firmware updates. The IEEE and T11 standards necessary to support CEE or DCE are only in draft form and not formalized yet. However, today Nexus 5000 and 7000 switches work with current Ethernet and all VC Ethernet modules work with them.

In the future, Nexus 5000 and 7000 switches will implement a new lossless Ethernet CEE standard that they call DCE (Data Center Ethernet). Virtual Connect Flex-10 will also support this standard and will offer even more savings than VC Flex-10 does today.

The objective that Cisco is promoting for CEE, FCoE, the Nexus product line, and DCE is to reduce the number of switches, cables, transceivers, and adapters needed to run Ethernet and Fibre Channel (FC) in a data center. All of the adapters and most of the cables in a data center are located between the servers and the first set of Ethernet and FC switches. Most customers can eliminate more adapters, cables, and switches by using BladeSystem with VC Flex-10 than they will ever be able to with CEE/DCE/FCoE - and they can do it today, without waiting for any new IEEE standards or any new invention or any new testing and without replacing their current Ethernet or FC infrastructure.

The reason is that BladeSystem eliminates all cables between servers and edge switches or interconnect devices - and VC Flex-10 consolidates 4 Ethernet fabrics onto one adapter and one interconnect module. Today, Nexus doesn't eliminate a single switch or cable or adapter. When Nexus is finally up to full capability, then the most it will be able to eliminate will be one set of FC adapters, cables, and modules. Since customers usually have many more Ethernet cables and switch ports than FC, the FCoE reduction pales in comparison with eliminating 100% of the cables between servers and first interconnect, and eliminating up to 100% of the NIC adapters, and eliminating up to 75% of the Ethernet switches.

In addition, Virtual Connect Flex-10 provides simple adjustment of NIC bandwidth to application needs, the least expensive way to merge 1Gb links onto a 10Gb connection, and all of the operational advantages of Virtual Connect - none of which are provided by the Nexus switch network. If a user is considering a Nexus network, then Virtual Connect Flex-10 is a great way to connect the servers to it. However, once a customer gains the advantages of BladeSystem and VC Flex-10, he or she might find it much less risky and much more cost-effective to use ProCurve, Brocade, or Cisco traditional Ethernet and Fibre Channel switches for the aggregation layer.

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