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Pulse Secure vADC

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by Aidan Clarke   Traditional IT applications were simple: they lived in one place, in your data center. If you wanted more capacity, you added more servers, storage and networks. If you wanted to make the application more reliable, you doubled it to make it highly available: you had one system running “active” - while the other system waited on “standby.” This concept of “redundancy” was simple, so long as you could buy two of everything, and were happy that only half of the infrastructure was active at any one time - not an efficient solution.   But modern applications need a modern approach to performance, security and reliability: which is why Pulse vADC approaches things differently, a software solution for a software world, where distributed applications need an “always-active” architecture.   We often hear from IT professionals that they used to avoid Active/Active architectures; for fear that performance would be compromised under failure. Our customers routinely deploy Pulse vADC in Active/Active, or even Active/Active/Active/Active solutions all the time: they can choose the right balance between node and cluster size, to optimize the availability, while reducing the size of the fault domain.     Similarly, high-availability architectures used to require that HA peers were installed as Layer 2 adjacent (ie: on the same network). These architectures simply don't work in today's clouds; for example, AWS availability zones, by their very design, are on different Layer 3 networks. In order to run a Layer 2 HA pair in Amazon AWS, you need to put your whole solution in a single AWS Availability zone - a practice that Amazon architects strongly discourage.   With Pulse vADC, if you can connect to each other via a network, then you can cluster your application. Which means that you can choose an availability architecture to suit your application - whether it lives in your data center, in a cloud, or both.   Get started with Pulse vADC today, our Community Edition is free to download and try out in your test and development environment.     This article is part of a series, beginning with: Staying Afloat in the Application Economy More to Explore: Prev: One ADC Platform, Any Environment Next: Intelligent N+M Clustering   
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by Aidan Clarke   The Brocade vADC suite is designed to be flexible, extensible and portable software. Regardless of whether your applications run in the enterprise data center, in a private cloud, a public cloud or anything in between, Brocade's vADC can get you there.   Our solution was purpose-built for software deployment, and fits naturally into any virtual or cloud environment: and it was the first full functioning ADC solution available on VMWare, and has been in public clouds since the beginning - originally named Zeus ZXTM, it was launched on Amazon EC2 in 2009. The Brocade vADC platform only needs one simple thing to operate: a platform that can run Linux on an Intel platform. If you can do that, you can run Brocade vADC.     Brocade vADC offers native images for Amazon AWS, Microsoft Azure, Google Cloud Engine, Rackspace, Joyent, Sunguard and many more - and it is also available as a Virtual Appliance for VMware, HyperV, Xen Server, KVM and OracleVM.   Furthermore, Brocade Services Director can manage vADC workloads in all of these environments simultaneously: our customers can deploy Brocade Services Director in an enterprise Data Centre (DC) and use it to manage workloads in both the DC and the cloud at the same time.   Simply put, no matter where your applications run, Brocade vADC can be right there with them. And no matter where you go, it's the same vADC software ensuring your applications are Available, Scalable, Fast and Secure. Get started with Brocade vADC today, our Developer Edition is free to download and try out in your test and development environment.     This article is part of a series, beginning with: Staying Afloat in the Application Economy More to Explore: Prev: Right-Size for Capacity Next: Active/Active Clustering for High Availability  
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by Aidan Clarke and Paul Wallace   Today’s applications are built for innovation and customer experience, and it can be hard to predict how they will evolve if they hit a rapid growth curve. Which makes it very hard to plan ahead for capacity, especially when you don't know how your systems will scale under increased workloads.   Traditionally, IT organizations would need to plan far, far ahead. Not just for systems resources such as CPU, memory, storage and networks, but also for software licensing for larger-scale systems. This used to very complex, as software sizing often depended on workloads: you might need to translate your projected capacity (guess) into the numbers of CPUs required (guess) in order to calculate the number and type of software licensing required (another guess).   In order to hit the projected workloads, you might need more CPUs, for which you might need to buy bigger licenses. And just in case, you might round up to make sure that your application did not hit the CPU license limit at peak periods.     With Brocade vADC, we have taken some of the guesswork out of capacity planning. We don't limit the number of CPUs you can run on an instance. If you need more horsepower, simply add more CPUs to the workload and you can scale up to meet demand, up to the licensed capacity you have selected.   With a pure software architecture, Brocade vADC can monitor throughput and capacity, while optimizing the available CPU and memory. So if you provision a vADC with 1 Gbps ADC capacity, then it will only be limited by the available CPU/memory/networking. You can add complex business rules, deep security scanning, compression and SSL/TLS security, and you will still be able to deliver 1 Gbps throughput so long as the system has enough resources.   So while traditional IT architectures meant that you had to over-size your systems - sometimes you had to install 10 Gbps of capacity just to run a 1 Gbps workload - with Brocade vADC, you just need to provision enough CPU and memory to right-size your workload.   Get started with Brocade vADC today, our Developer Edition is free to download and try out in your test and development environment.     This article is part of a series, beginning with: Staying Afloat in the Application Economy More to Explore: Prev: Agile Licensing for Agile Applications Next: One ADC Platform, Any Environment   
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As someone once said, “Software is eating the world.” And now, everything we do ‘online’ or ‘digitally’ is delivered to us by applications.   As a result, developers are under pressure to deliver new applications, to enhance our online experience. And it falls to IT departments to install, enable, and protect those and  
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We live in a virtualized world. Virtualization has fundamentally changed the way that we build, deploy, manage and maintain applications. Servers used to be static, time consuming to provision, expensive to maintain and often over provisioned and under utilize. Virtualization tipped  
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Fixed-size licensing works for fixed-sized applications. If your application rarely changes, and sees a steady workload, then you can optimize the costs of the platform to match the resources you need.  
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