|By Don MacVittie||
|December 4, 2012 07:45 AM EST||
Test results provided by vendors and “independent testing labs” often test for things that just don’t matter in the datacenter. Know what you’re getting.
When working in medicine, you don’t glance over a patient, then ask them “so how do you feel when you’re at your best?” You ask them what is wrong, then run a ton of tests – even if the patient thinks they know what is wrong – then let the evidence determine the best course of treatment.
Sadly, when determining the best tools for your IT staff to use, we rarely follow the same course. We invite a salesperson in, ask them “so, what do you do?”, and let them tell us with their snippets of reality or almost-reality why their product rocks the known world. Depending upon the salesperson and the company, their personal moral code or corporate standards could limit them to not bringing up the weak points of their products to outright lying about its capabilities.
“But Don!”, you say, “you’re being a bit extreme, aren’t you?” Not in my experience I am not. From being an enterprise architect to doing comparative reviews, I have seen it all. Vendor culture seems to infiltrate how employees interact with the world outside their HQ – or more likely (though I’ve never seen any research on it), vendors tend to hire to fit their culture, which ranges from straight-up truth about everything to wild claims that fall apart the first time the device is put into an actual production-level network.
The most common form of disinformation that is out there is to set up tests so they simply show the device operating at peak efficiency. This is viewed as almost normal by most vendors – why would you showcase your product in less than its best light? and as a necessary evil by most of the few who don’t have that view – every other vendor in the space is using this particular test metric, we’d better too or we’ll look bad. Historically, in network gear, nearly empty communications streams have been the standard for high connection rates, very large window sizes the standard for manipulating throughput rates. While there are many other games vendors in the space play to look better than they are, it is easy to claim you handle X million connections per second if those connections aren’t actually doing anything. It is also easier to claim you handle a throughput of Y Mbps if you set the window size larger than reality would ever see it.
Problem with this kind of testing is that it seeps into the blood, after a while, those test results start to be sold as actual… And then customers put the device into their network, and needless to say, they see nothing of the kind. You would be surprised the number of times when we were testing for Network Computing that a vendor downright failed to operate as expected when put into a live network, let alone met the numbers the vendor was telling customers about performance.
One of the reasons I came to F5 way back when was that they did not play these games. They were willing to make the marketing match the product and put a new item on the roadmap for things that weren’t as good as they wanted. We’re still out there today helping IT staff understand testing, and what testing will show relevant numbers to the real world. By way of example, there is the Testing Configuration Guide on F5 DevCentral.
As Application Delivery Controllers have matured and solidified, there has been much change in how they approach network traffic. This has created an area we are now starting to talk more about, which is the validity of throughput testing in regards to ADCs in general. The thing is, we’ve progressed to the point that simply “we can handle X Mbps!” is no longer a valid indication of the workloads an ADC will be required to handle in production scenarios. The real measure for application throughput that matters is requests per second. Vendors generally avoid this kind of testing, because response is also limited by the capacity of the server doing the actual responding, so it is easy to get artificially low numbers.
At this point in the evolution of the network, we have reached the reality of that piece of utility computing. Your network should be like electricity. You should be able to expect that it will be on, and that you will have enough throughput to handle incoming load. Mbps is like measuring amperage… When you don’t have enough, you’ll know it, but you should, generally speaking, have enough. It is time to focus more on what uses you put that bandwidth to, and how to conserve it. Switching to LED bulbs is like putting in an ADC that is provably able to improve app performance. LEDs use less electricity, the ADC reduces bandwidth usage… Except that throughput or packets per second isn’t measuring actual improvements of bandwidth usage. It’s more akin to turning off your lights after installing LED bulbs, and then saying “lookie how much electricity those new bulbs saved!”
Seriously, do you care if your ADC can delivery 20 million Megabits per second in throughput, or that it allows your servers to respond to requests in a timely manner? Seriously, the purpose of an Application Delivery Controller is to facilitate and accelerate the delivery of applications, which means responses to requests. If you’re implementing WAN Optimization functionality, throughput is still a very valid test. If you’re looking at the Application Delivery portion of the ADC though, it really has no basis in reality, because requests and responses are messy, not “as large a string of ones as I can cram through here”. From an application perspective – particularly from a web application perspective – there is a lot of “here’s a ton of HTML, hold on, sending images, wait, I have a video lookup…” Mbps or MBps just doesn’t measure the variety of most web applications. But users are going to feel requests per second just as much as testing will show positive or negative impacts. To cover the problem of application servers actually having a large impact on testing, do what you do with everything else in your environment, control for change. When evaluating ADCs, simply use the same application infrastructure and change only the ADC out. Then you are testing apples-to-apples, and the relative values of those test results will give you a gauge for how well a given ADC will perform in your environment.
In short, of course the ADC looks better if it isn’t doing anything. But ADCs do a ton in production networks, and that needs to be reflected in testing. If you’re fortunate enough to have time and equipment, get a test scheduled with your prospective vendor, and make sure that test is based upon the usage your actual network will expose the device to. If you are not, then identify your test scenarios to stress what’s most important to you, and insist that your vendor give you test results in those scenarios. In the end, you know your network far better than they ever will, and you know they’re at least not telling you the whole story, make sure you can get it.
Needless to say, this is a segue into the next segment of our #BareMetalBlog series, but first I’m going to finish educating myself about our use of FPGAs and finish that segment up.
"Dice has been around for the last 20 years. We have been helping tech professionals find new jobs and career opportunities," explained Manish Dixit, VP of Product and Engineering at Dice, in this SYS-CON.tv interview at 19th Cloud Expo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 4, 2016 10:45 AM EST Reads: 864
More and more brands have jumped on the IoT bandwagon. We have an excess of wearables – activity trackers, smartwatches, smart glasses and sneakers, and more that track seemingly endless datapoints. However, most consumers have no idea what “IoT” means. Creating more wearables that track data shouldn't be the aim of brands; delivering meaningful, tangible relevance to their users should be. We're in a period in which the IoT pendulum is still swinging. Initially, it swung toward "smart for smar...
Dec. 4, 2016 09:45 AM EST Reads: 533
Extracting business value from Internet of Things (IoT) data doesn’t happen overnight. There are several requirements that must be satisfied, including IoT device enablement, data analysis, real-time detection of complex events and automated orchestration of actions. Unfortunately, too many companies fall short in achieving their business goals by implementing incomplete solutions or not focusing on tangible use cases. In his general session at @ThingsExpo, Dave McCarthy, Director of Products...
Dec. 4, 2016 09:30 AM EST Reads: 597
[slides] Agility for Digital Transformation | @CloudExpo @NewhouseConsult #Agile #DigitalTransformation
Successful digital transformation requires new organizational competencies and capabilities. Research tells us that the biggest impediment to successful transformation is human; consequently, the biggest enabler is a properly skilled and empowered workforce. In the digital age, new individual and collective competencies are required. In his session at 19th Cloud Expo, Bob Newhouse, CEO and founder of Agilitiv, drew together recent research and lessons learned from emerging and established compa...
Dec. 4, 2016 09:30 AM EST Reads: 786
Without a clear strategy for cost control and an architecture designed with cloud services in mind, costs and operational performance can quickly get out of control. To avoid multiple architectural redesigns requires extensive thought and planning. Boundary (now part of BMC) launched a new public-facing multi-tenant high resolution monitoring service on Amazon AWS two years ago, facing challenges and learning best practices in the early days of the new service. In his session at 19th Cloud Exp...
Dec. 4, 2016 09:00 AM EST Reads: 564
"Venafi has a platform that allows you to manage, centralize and automate the complete life cycle of keys and certificates within the organization," explained Gina Osmond, Sr. Field Marketing Manager at Venafi, in this SYS-CON.tv interview at DevOps at 19th Cloud Expo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 4, 2016 08:45 AM EST Reads: 799
Effectively SMBs and government programs must address compounded regulatory compliance requirements. The most recent are Controlled Unclassified Information and the EU's GDPR have Board Level implications. Managing sensitive data protection will likely result in acquisition criteria, demonstration requests and new requirements. Developers, as part of the pre-planning process and the associated supply chain, could benefit from updating their code libraries and design by incorporating changes. In...
Dec. 4, 2016 08:30 AM EST Reads: 996
"Coalfire is a cyber-risk, security and compliance assessment and advisory services firm. We do a lot of work with the cloud service provider community," explained Ryan McGowan, Vice President, Sales (West) at Coalfire Systems, Inc., in this SYS-CON.tv interview at 19th Cloud Expo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 4, 2016 08:30 AM EST Reads: 776
Regulatory requirements exist to promote the controlled sharing of information, while protecting the privacy and/or security of the information. Regulations for each type of information have their own set of rules, policies, and guidelines. Cloud Service Providers (CSP) are faced with increasing demand for services at decreasing prices. Demonstrating and maintaining compliance with regulations is a nontrivial task and doing so against numerous sets of regulatory requirements can be daunting task...
Dec. 4, 2016 08:15 AM EST Reads: 770
CloudJumper, a Workspace as a Service (WaaS) platform innovator for agile business IT, has been recognized with the Customer Value Leadership Award for its nWorkSpace platform by Frost & Sullivan. The company was also featured in a new report(1) by the industry research firm titled, “Desktop-as-a-Service Buyer’s Guide, 2016,” which provides a comprehensive comparison of DaaS providers, including CloudJumper, Amazon, VMware, and Microsoft.
Dec. 4, 2016 08:15 AM EST Reads: 716
Businesses and business units of all sizes can benefit from cloud computing, but many don't want the cost, performance and security concerns of public cloud nor the complexity of building their own private clouds. Today, some cloud vendors are using artificial intelligence (AI) to simplify cloud deployment and management. In his session at 20th Cloud Expo, Ajay Gulati, Co-founder and CEO of ZeroStack, will discuss how AI can simplify cloud operations. He will cover the following topics: why clou...
Dec. 4, 2016 08:00 AM EST Reads: 697
Fact: storage performance problems have only gotten more complicated, as applications not only have become largely virtualized, but also have moved to cloud-based infrastructures. Storage performance in virtualized environments isn’t just about IOPS anymore. Instead, you need to guarantee performance for individual VMs, helping applications maintain performance as the number of VMs continues to go up in real time. In his session at Cloud Expo, Dhiraj Sehgal, Product and Marketing at Tintri, sha...
Dec. 4, 2016 08:00 AM EST Reads: 811
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
Dec. 4, 2016 06:15 AM EST Reads: 6,976
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
Dec. 4, 2016 05:30 AM EST Reads: 1,761
More and more companies are looking to microservices as an architectural pattern for breaking apart applications into more manageable pieces so that agile teams can deliver new features quicker and more effectively. What this pattern has done more than anything to date is spark organizational transformations, setting the foundation for future application development. In practice, however, there are a number of considerations to make that go beyond simply “build, ship, and run,” which changes how...
Dec. 4, 2016 04:45 AM EST Reads: 4,978
WebRTC is the future of browser-to-browser communications, and continues to make inroads into the traditional, difficult, plug-in web communications world. The 6th WebRTC Summit continues our tradition of delivering the latest and greatest presentations within the world of WebRTC. Topics include voice calling, video chat, P2P file sharing, and use cases that have already leveraged the power and convenience of WebRTC.
Dec. 4, 2016 04:30 AM EST Reads: 1,560
Amazon has gradually rolled out parts of its IoT offerings, but these are just the tip of the iceberg. In addition to optimizing their backend AWS offerings, Amazon is laying the ground work to be a major force in IoT - especially in the connected home and office. In his session at @ThingsExpo, Chris Kocher, founder and managing director of Grey Heron, explained how Amazon is extending its reach to become a major force in IoT by building on its dominant cloud IoT platform, its Dash Button strat...
Dec. 4, 2016 04:00 AM EST Reads: 6,236
Let’s face it, embracing new storage technologies, capabilities and upgrading to new hardware often adds complexity and increases costs. In his session at 18th Cloud Expo, Seth Oxenhorn, Vice President of Business Development & Alliances at FalconStor, discussed how a truly heterogeneous software-defined storage approach can add value to legacy platforms and heterogeneous environments. The result reduces complexity, significantly lowers cost, and provides IT organizations with improved efficienc...
Dec. 4, 2016 04:00 AM EST Reads: 4,964
Internet-of-Things discussions can end up either going down the consumer gadget rabbit hole or focused on the sort of data logging that industrial manufacturers have been doing forever. However, in fact, companies today are already using IoT data both to optimize their operational technology and to improve the experience of customer interactions in novel ways. In his session at @ThingsExpo, Gordon Haff, Red Hat Technology Evangelist, will share examples from a wide range of industries – includin...
Dec. 4, 2016 03:45 AM EST Reads: 1,580
"We build IoT infrastructure products - when you have to integrate different devices, different systems and cloud you have to build an application to do that but we eliminate the need to build an application. Our products can integrate any device, any system, any cloud regardless of protocol," explained Peter Jung, Chief Product Officer at Pulzze Systems, in this SYS-CON.tv interview at @ThingsExpo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 4, 2016 02:15 AM EST Reads: 890