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  • The Evolution of the Data Centre


    LAN Connectivity • Optimized for Consolidation – Replaces Multiple 1GbE ports with 10GbE port

    • QLogic NPAR™ Technology for Vendor Neutral and Switch Agnostic NIC Partitioning

    I/O Convergence • Support for Concurrent NIC, FCoE and iSCSI Traffc with Hardware Offoads

    • QLogic VMfex™ Advanced Virtualization Features Increase VM Density

    • Simplifed Management of NIC, FCoE and iSCSI Networking with a Single Pane-of-Glass Management

    10Gb Ethernet

    Consolidate and Converge Intelligent Ethernet Adapters and Converged Network Adapters

    SN0330955-00 Rev.A


    The Evolution of the Data Centre



    04 Consolidation - Optimizing Data Center Resources Many organizations are looking to consolidate their IT infrastructure as a way to simplify management, increase resource utilization, reduce costs and move towards fewer, larger internet data centers which will, eventually, reside in the Cloud.

    07 Virtualization - Increasing resource utilization, availability and agility Most organizations are accelerating server virtualization projects and plan on using the adoption of virtualization as a foundational technology to launch their Cloud Computing initiatives. Server virtualization offers many benefits, but it also presents new challenges to the enterprise.

    13 Convergence - A unified data center fabric Driven by the additional costs and ever increasing difficulties of maintaining separate data and storage networks, many organizations are looking to merge, or converge, their dedicated Fibre Channel storage networks onto a common Ethernet network.

    15 Cloud Computing - Completing the Journey A virtualized, 10 GbE data center provides the foundation for a service- oriented architecture (SOA) – the latest phase in the evolution of IT, otherwise known as Cloud Computing.

    © 2011 QLogic Corporation. All rights reserved. QLogic, the QLogic Logo, Enterprise Fabric Suite 2007-2008, HyperStack, and QuickTools are registered trademarks or trademarks of QLogic Corporation. All other brands and product names are trademarks or registered trademarks of their respective owners. Information supplied by QLogic is believed to be accurate, and reliable.QLogic Corporation assumes no responsibility for any errors in this brochure. QLogic Corporation reserves the right, without notice, to makes changes in product design or specifications.

    SN0054673-00 Rev.A 8/11

    Consolidation, virtualization, convergence and Cloud Computing – all desirable objectives for the next generation data centre, but just how do they fit together, and what challenges do they present along the way?

    This QLogic supplement is an invaluable guide to the desirable, if daunting, objective of a fully flexible and dynamic enterprise IT infrastructure. Too many vendors gloss over the technical and management complexities that have to be addressed when

    consolidating and/or virtualizing IT resources, or converging enterprise networks. Over the following pages, you can read a ‘warts and all’ guide to the processes involved in the journey to the Cloud.

    As a result, you’ll be much better equipped to implement the IT strategy that’s right for your business, and it’ll be a surprise if QLogic’s innovative I/O technology isn’t a part of the solution.

    Philip Alsop, DCS editor

    Focus on the future





    The Evolution of the Data Centre

    Consolidation Overview Many organizations are looking to consolidate their IT infrastructure as a way to simplify management, increase resource utilization and reduce costs. Along with this, enterprise organizations are actively reducing their number of data centers supported by moving branch and regional

    Consolidation - Optimizing Data Center Resources While mitigating the challenges associated with migrating toward Cloud Computing

    office IT assets into larger internet data centers, which will eventually reside within the Cloud. This type of consolidation effort will not only greatly increase data center networking scale, but more importantly, increase complexities. To avoid potential pitfalls, IT administrators should familiarize themselves with potential

    challenges. This paper discusses many of these issues and offers solutions so that consolidation efforts do not result in diminished application performance, directly effecting end-user productivity and offsetting potential consolidation savings.

    Server Connectivity Today’s server adapters are the most flexible and scalable adapters the industry has seen and fit the requirements for today’s demanding data center environments. Data center networks are being pushed to their limits. The escalating deployments of servers with multi- core processors and demanding applications, such as database clusters, and video-on-demand, are driving the need for 10 Gigabit connections.

    Customers require flexible and scalable I/O solutions to meet the rigorous requirements of running mission-critical applications in virtualized and unified storage environments. Server adapters address the demanding needs of the next-generation data center by providing unmatched features for virtualization, flexibility and proven, reliable

    QLogic NPAR Technology

    Network Interface Virtual Partitions NPAR technology offers flexible bandwidth provisioning of four partitions per port, each sharing a 10 GbE connection with the added ability to run multiple protocols functions (NIC, FCoE, iSCSI) simultaneously. NPAR helps consolidation efforts by enabling administrators to split up the total 10Gb bandwidth as small as 100Mb increments to each partition and reallocate bandwidth and resources as needed.

    NPAR gives IT organizations enhanced flexibility to support multiple protocols and extends capacity, further reducing network cost.

    Port 1 Port 2










    Division of Physical Functions Division of Bandwidth


    The Evolution of the Data Centre

    performance. The reason that convergence is so intriguing is due to the introduction of new 10Gb Ethernet adapters.

    With the escalating deployments of servers with multi-core processors and demanding applications are driving the need for 10 Gigabit connections.

    The introduction of a lossless enhanced Ethernet not only complements this but has the added benefit of offering new Fiber Channel over Ethernet (FCoE) capabilities, and can also target iSCSI.

    The goal of enhanced Ethernet is being able to migrate all connectivity to a single physical infrastructure, thereby reducing overall network, port and related management costs associated with a second, storage-only network.

    QLogic offers two choices for customers requiring flexible and scalable I/O solutions to meet the rigorous requirements of running mission-critical applications in virtualized and unified storage environments; both stand-up and mezzanine adapters for

    rack and blade servers, ensuring a product for your environment. Each QLogic product offers 10GbE line-rate throughput to address the demanding needs of next-generation data centers and offers unmatched features for virtualized data including low CPU utilization to allow for extreme scalability, mobility of VMs and proven, reliable performance.

    Each product is designed to address the increasing complexities of virtualized data centers and cloud services, while the converged network adapter (CNA) addresses the added benefit of storage traffic, with support for concurrent IP, FCoE and iSCSI.

    The QLogic portfolio addresses future requirements with products that are protocol- and OS- agnostic and support exabyte- level scalability to future proof your environment.

    Fabric Infrastructure One of the most important switch innovations for consolidation is the inclusion of specialized stacking ports to connect multiple switches more efficiently in larger configurations. Stackable switches enable the creation of multi- switch networks with little user disruption and at a much lower cost than traditional non-stacking switches and, therefore, go a long way towards the consolidation of IT infrastructure.

    It’s easy to examine how this occurs. When the number of device ports required exceeds that of a single switch, a second switch can be used to extend the network and accommodate additional devices.

    Traditionally, the way of growing a switch network was to deploy the user ports themselves as interconnects between switches. For example, with two switches, you connect two user ports on the first switch with two user ports on the second switch.

    The formula is 2n(n-1), where n is the number of switches. In the two switch example, 4 ports are used. Connecting 5 switches takes 40

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    network adapters

    3200 Series 10GbE intelligent Ethernet adapters



    The Evolution of the Data Centre

    ports, to connect 6 switches in this topology would take 60 ports – adding the sixth switch would only provide 4 additional user ports and therefore is not practical or economical.