Welcome!

Linux Containers Authors: Liz McMillan, Yeshim Deniz, Pat Romanski, Derek Weeks, Elizabeth White

Related Topics: Containers Expo Blog, Java IoT, Linux Containers, Open Source Cloud, SDN Journal

Containers Expo Blog: Article

The Brave New World of Storage Virtualization

Can you put your virtual environment on autopilot?

I recently found myself intrigued by an article by Jon William Toigo on Tech Target titled - Software-defined infrastructure or how storage becomes software. In his article, Toigo poses the question: Could a software-defined infrastructure, with software-based controls and policies, be the answer to managing and allocating storage? While I am sure Jon would agree we're all tired of the buzz words around "software-defined-anything", the fact of the matter is that we all use it anyway for lack of a better description of what's occurring today.

Storage specifically is one of those areas I always say is like organizing your room: everyone has their own way of doing it.  You want your dresser to be a certain height.  You want you mattress pointing a certain direction and the light shining through your window on your desk at just the right time of day.  The truth is, storage is the under-pinning of virtualization that everyone wants to architect and manage the way they want to, and no one is going to tell them otherwise... UNTIL - wait for it - ...software can manage this FOR people.

Where is the robot (I wish the Roomba folks would hurry up with this, but I digress;) that keeps your room exactly the way you want it to be?  The industry seems constantly to toss this idea around, but no one really seems to know where to find the solution.  The truth is that no matter what quirks people have with their storage, there is one goal everyone has in common: Ensuring applications have ability to consume the storage resources they need while preserving priority and business logic; as well as increasing efficiency without introducing risk.  This is the promise of every storage vendor on the planet trying to sell their latest auto-tiering, de-dupe, compression solution and all the wonderful bling to trick out their man cave.

The problem, however, is that virtualization obscures the lines with storage and it becomes intractably complex to manage the macro-level supply and demand of resources occurring across the stack. Traditional management tools - storage- and virtualization-related - are running into the limitations of their stats-based, linear approach to managing diverse environments.

An Illustration
As an illustration, let's use a real-life example. Let's assume we have a NetApp environment supporting VMWare.  The NetApp consist of 4 Aggregates spread across two filers.

  • Aggr 1 SATA and Aggr 2 SATA are on Controller A, and each Aggr comprises of 2 Volumes in VMWare
  • Aggr 3 SAS and Aggr 4 SAS are on Controller B, and each Aggr comprises of 2 Volumes in VMWare

Aggr1 sees a spike in IOPS driven by 3 virtual machines demanding IOPS on its 2 Volumes.  This results in Aggr1 utilizing 93% of its available IOPS capacity due to several high consumers, or "Bully" VMs (to use a traditional storage vendor's language).  To compound the issue, the high utilization on disk has now manifested itself up the stack and begins to impact the ability of other workloads to access the storage resources they require on Aggr1.

BraveNew-a

In this example, a traditional software management system for the storage platform will alert an administrator that the Aggr1 has exceeded a tolerable utilization on IOPS and that it is time for an administrator to act.  Similarly, the virtualization vendor (in this case VMWare), will generate alarms related to the virtualized components layered on top of the storage platform.

BraveNew-b

The administrator must then siphon through the charts and graphs in their storage vendor's tool, or their virtualization management system, with the end goal being some sort of resource allocation decision to intelligently allocate storage resources to the applications that need them while avoiding quality of service disruption at the expense of low-priority applications.

More likely the administrator needs to access both of these interfaces to try and accomplish this.  In this example, the resource decision might be to move the volume to separate aggregate on Controller A (when it reality this won't do much due to performance constraints underneath), move the volume itself to faster disk associated with a separate storage controller, or move the virtual machine to a volume hosted on Controller B.

BraveNew-c

Now the second part of this equation (and arguably more difficult to get right) is: How does the administrator ensure that the domino they decide to push over doesn't create another resource constraint within the environment?  Fundamentally, traditional storage vendor software offerings and virtualization management tools are incapable of understanding the impact and outcome of any prospective resolution because they simply do not analyze the interdependencies of this decision across both (virtualized) compute and storage components.  The best case for operations is a head start on the troubleshooting process after quality of service has already been impacted or is in the process of being degraded.

Are Things Even at Human Scale Anymore?
In order to truly accomplish a software-defined storage system, there needs to be a new type of management system capable of connecting these two obscure worlds for the purpose of intelligent decision making and resource allocation.

Toigo paints this gap perfectly when he states, "Our storage needs to be managed and allocated by intelligent humans, with software-based controls and policies serving as a more efficient extension of our ability to translate business needs into automation support."

Following this logic, this new system must go above and beyond looking at application issues in isolation to determine how to properly allocate the infrastructure's entire supply of finite storage resources to every virtualized workload and application - at scale.  Inevitably, this means looking across all application resource demands concurrently and then determining how to service each application's request for the best cost/benefit to the overall platform by allocating the supply of storage resource intelligently and in the most efficient way.   Ideally, this will be done prescriptively - before quality of service is degraded.

The second phase of this brave new world will involve incorporating business logic that allows the software-driven control plane to consider business constraints alongside of capacity and performance metrics in real time.   If tier 1 applications need to have priority for faster disk over low-priority applications, then the system should be set it and forget it.  If tier 3 applications must be confined to bronze or slow storage, then the constraint should carry over dynamically for any workload matching this criterion that is provisioned across the lifecycle of the environment.

If 20% overhead needs to be maintained across tier-1 storage resources, then software should be intelligent enough to control utilization below this level, instead of notifying administrators once they have crossed it and forcing them to bring the infrastructure back from the brink.

The reality is that everyone has their own idea how to best trick out their room - in this case, their precious storage. Administrators will never truly be comfortable with putting their storage architecture on auto-pilot until they can rest assured that their policies are maintained while assuring application performance.  Any system developed to tackle this brave new world, must be able to solve both of these goals simultaneously - a challenge that Toigo argues is beyond human capacity to do so at scale.

More Stories By Eric Bannon

A passion for econometric analysis and statistical modeling led Eric to… wait for it… software. Eric discovered that by leveraging IT algorithms, based on the principles of supply and demand, software can solve some of the biggest challenges in infrastructure and cloud management today.

Joining VMTurbo in 2011, Eric now serves as a Solution Architect, where he helps organizations unlock the full value of virtualization through the implementation of software-defined control. He holds a B.S. in Economics and Finance from Bentley University, and still likes to deconstruct James Heckman’s econometric models in his free time.

@ThingsExpo Stories
Artificial intelligence, machine learning, neural networks. We’re in the midst of a wave of excitement around AI such as hasn’t been seen for a few decades. But those previous periods of inflated expectations led to troughs of disappointment. Will this time be different? Most likely. Applications of AI such as predictive analytics are already decreasing costs and improving reliability of industrial machinery. Furthermore, the funding and research going into AI now comes from a wide range of com...
SYS-CON Events announced today that Silicon India has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Published in Silicon Valley, Silicon India magazine is the premiere platform for CIOs to discuss their innovative enterprise solutions and allows IT vendors to learn about new solutions that can help grow their business.
SYS-CON Events announced today that Ayehu will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on October 31 - November 2, 2017 at the Santa Clara Convention Center in Santa Clara California. Ayehu provides IT Process Automation & Orchestration solutions for IT and Security professionals to identify and resolve critical incidents and enable rapid containment, eradication, and recovery from cyber security breaches. Ayehu provides customers greater control over IT infras...
SYS-CON Events announced today that MobiDev, a client-oriented software development company, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software company that develops and delivers turn-key mobile apps, websites, web services, and complex software systems for startups and enterprises. Since 2009 it has grown from a small group of passionate engineers and business...
SYS-CON Events announced today that GrapeUp, the leading provider of rapid product development at the speed of business, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company, specialized in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market acr...
SYS-CON Events announced today that Conference Guru has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. A valuable conference experience generates new contacts, sales leads, potential strategic partners and potential investors; helps gather competitive intelligence and even provides inspiration for new products and services. Conference Guru works with conference organi...
In this presentation, Striim CTO and founder Steve Wilkes will discuss practical strategies for counteracting fraud and cyberattacks by leveraging real-time streaming analytics. In his session at @ThingsExpo, Steve Wilkes, Founder and Chief Technology Officer at Striim, will provide a detailed look into leveraging streaming data management to correlate events in real time, and identify potential breaches across IoT and non-IoT systems throughout the enterprise. Strategies for processing massive ...
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
"MobiDev is a Ukraine-based software development company. We do mobile development, and we're specialists in that. But we do full stack software development for entrepreneurs, for emerging companies, and for enterprise ventures," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
SYS-CON Events announced today that Cloud Academy named "Bronze Sponsor" of 21st International Cloud Expo which will take place October 31 - November 2, 2017 at the Santa Clara Convention Center in Santa Clara, CA. Cloud Academy is the industry’s most innovative, vendor-neutral cloud technology training platform. Cloud Academy provides continuous learning solutions for individuals and enterprise teams for Amazon Web Services, Microsoft Azure, Google Cloud Platform, and the most popular cloud com...
SYS-CON Events announced today that TechTarget has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. TechTarget storage websites are the best online information resource for news, tips and expert advice for the storage, backup and disaster recovery markets.
SYS-CON Events announced today that CA Technologies has been named "Platinum Sponsor" of SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business - from apparel to energy - is being rewritten by software. From planning to development to management to security, CA creates software that fuels transformation for companies in the applic...
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
The current age of digital transformation means that IT organizations must adapt their toolset to cover all digital experiences, beyond just the end users’. Today’s businesses can no longer focus solely on the digital interactions they manage with employees or customers; they must now contend with non-traditional factors. Whether it's the power of brand to make or break a company, the need to monitor across all locations 24/7, or the ability to proactively resolve issues, companies must adapt to...
SYS-CON Events announced today that TMC has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo and Big Data at Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Global buyers rely on TMC’s content-driven marketplaces to make purchase decisions and navigate markets. Learn how we can help you reach your marketing goals.
Amazon started as an online bookseller 20 years ago. Since then, it has evolved into a technology juggernaut that has disrupted multiple markets and industries and touches many aspects of our lives. It is a relentless technology and business model innovator driving disruption throughout numerous ecosystems. Amazon’s AWS revenues alone are approaching $16B a year making it one of the largest IT companies in the world. With dominant offerings in Cloud, IoT, eCommerce, Big Data, AI, Digital Assista...
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
SYS-CON Events announced today that IBM has been named “Diamond Sponsor” of SYS-CON's 21st Cloud Expo, which will take place on October 31 through November 2nd 2017 at the Santa Clara Convention Center in Santa Clara, California.
Multiple data types are pouring into IoT deployments. Data is coming in small packages as well as enormous files and data streams of many sizes. Widespread use of mobile devices adds to the total. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists looked at the tools and environments that are being put to use in IoT deployments, as well as the team skills a modern enterprise IT shop needs to keep things running, get a handle on all this data, and deliver...
SYS-CON Events announced today that Enzu will exhibit at SYS-CON's 21st Int\ernational Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Enzu’s mission is to be the leading provider of enterprise cloud solutions worldwide. Enzu enables online businesses to use its IT infrastructure to their competitive advantage. By offering a suite of proven hosting and management services, Enzu wants companies to focus on the core of their ...