devopsy.kinsta.cloud

Author: Melinda Cross

  • Why SDN’s Hot Streak Continues in 2020

    Why SDN’s Hot Streak Continues in 2020

    The software-defined networking (SDN) market is expected to grow by double-digits between now and 2023, driven by the increasing mainstream adoption of this technology. And for good reason: SDN gives IT the ability to make changes through software code instead of reconfiguring each device, and manage data traffic from a central console to move it in any direction.

    Communication gear still drives the physical movement of bits, but software drives the data plan and the control plan. This allows network managers—and even applications—to dynamically manage network resources based on complex system needs. SDN supports real-time integration across multiple servers, services and clouds, and it also processes huge volumes of data. IT departments can now overcome traditional networking issues such as performance bottlenecks and develop a more responsive network strategy.

    SDN Plays a Critical Role in Cloud Adoption and Improves Security for IT Departments

    SDN architecture integrates easily with cloud-based environments, both public and private ones. This gives network managers greater flexibility, speed and automation in managing their network clouds.

    On the security front, SDN allows an IT department to divide a network connection between an end user and the data center, and provide different security settings for the various types of network traffic. For example, a network could have one public-facing, low security network without any sensitive information. But another network segment could have a software-based firewall and encryption policies that allow for more sensitive data to travel over it. Having the ability to match security policies to specific workloads is a key advantage of SDN. 

    One of the hottest trends with SDN is microsegmentation, where IT professionals customize security settings to different types of traffic. With this security model, the goal is to apply segmentation rules down to the workload or application. This mitigates the likelihood of an attacker migrating between compromised workloads or applications to others. Basically, microsegmentation creates intelligent groupings of workloads based on their characteristics as communicated inside the data center. This approach does not depend on dynamically changing networks, specific business or technical requirements which means microsegmentation provides enhanced security.

    The software-defined wide area network (SD-WAN) takes SDN even further by connecting enterprise networks over large geographical areas, such as branch offices and data centers. Traditional WAN connections typically needed technology that required special proprietary hardware. SD-WAN moves more of the network control into the cloud through software, allowing for greater scalability, flexibility and reduced hardware costs. SD-WAN is expected to grow even faster than SDN in the coming years for several reasons:

    • Greater reliability of application performance, a huge advantage for users in today’s digital workspaces.
    • High level of connection security for cloud applications without performance trade-offs.
    • Increased bandwidth which reduces congestion and slowdowns.
    • More business agility through faster deployments of new applications.
    • Simpler IT administration through a centralized console instead of in-field configurations.

    SDN and its offspring of SD-WANs continue to defy expectations in creating greater agility, flexibility, security and reliability. Leading-edge IT organizations are embracing the imperatives of digital transformation through SDN and SD-WAN to provide for agile deployment, provisioning and operational management.

    — Melinda Cross

  • Why the Buzz on Software-Defined Everything (SDx)?

    Why the Buzz on Software-Defined Everything (SDx)?

    You’ve likely heard the buzz getting louder the last few years around software-defined everything (SDx). You’re probably finding a swarm of companies knocking on your door selling a host of services around implementing software-defined networking (SDN), software-defined storage (SDS) and software-defined data center (SDDC). What you may not realize is that this software-defined movement is truly a disruptive technology shift that is dramatically changing the way an organization accesses storage, networks and data centers.

    The overarching mission of SDx is to break down the discrete IT silos (compute, storage and networking) by using software to bridge the technological and organizational gaps. By giving software systems a starring role in managing different kinds of hardware, the premise is that productivity will increase through more robust network access from both portable and traditional devices. 

    What are the true potential and outcomes of SDx that an IT administrator can tout to management? For starters, early adopters have reported being able to deliver significant cost savings and greater speed of delivery. They cite benefits such as decreased hardware costs, greater automation, more rapid deployment of IT resources and shorter timelines to implementation—to name the key ones. 

    Let’s take the traditional data center, where most organizations grapple with the high costs of ongoing management and maintenance of network switches, servers, storage devices and other hardware. Keeping these resources updated can be complex and expensive for an IT department. Moving to an SDDC, for example, can lower the total cost of ownership by reducing hardware costs (servers, racks, disk and tape, routers, etc.), and minimizing the data center size and the use of power, cooling and ongoing maintenance. With an SDDC, the IT department enjoys the benefits of a more simplified process that increases the speed of appropriating and provisioning networking. Software-automated provisioning can enable application deployment within minutes, for example.

    Instead of the IT department being considered a hindrance, SDDC allows developers to create applications that are best for the business, instead of what works based on the hardware.

    “Every technology organization needs to be able to transform ideas into working functionality that creates value for customers. That means you need not only world-class development processes but infrastructure processes as well—and that’s where software-defined data centers become absolutely relevant,” said Gene Kim, co-author of  “The Phoenix Project: A Novel About IT, DevOps, and Helping Your Business Win.”

    The main elements of an SDDC include:

    • A software implementation of a computer, which is called virtualization.
    • An SDN where hardware and software resources are merged into a software-based virtual network.
    • An SDS that includes storage virtualization. 
    • Automation software that allows an IT administrator to provision, control and manage all SDDCs components.

    The second big driver of SDx adoption by IT departments is the increased agility they experience in responding to business demands. Much of this is made possible with SDS, which is an innovative way to restructure your infrastructure by separating hardware from software, and using software in place of disks and networking devices. SDS uses standard servers to manage storage requests by virtualizing your physical storage. This gives you more control over where and how data is stored.

    Some of the key benefits of SDS over traditional storage include:

    • Automatic storage management capabilities reduce the number of manual tasks for your storage administrators. They adapt to different needs without any human oversight or new hardware requirements.
    • Flexibility to increase your storage requirements while decreasing the capacity of your existing hardware.
    • Lower costs since SDS solutions run on standard hardware, and the automation reduces the number of administrators required. 
    • More scalability options, depending on your business requirements, by adding extra storage arrays or including additional CPUs and memory.

     

     

    As business requirements continue to increase in speed and number, forward-thinking IT departments are moving away from hardware commitments and rigid architectures that constrict their ability to react and adjust to changing needs. Software-defined technologies are becoming the innovative powerhouses behind building more efficient and agile IT services for today and well into the future.

    — Melinda Cross