|By Michael Bushong||
|July 11, 2014 10:00 AM EDT||
The challenge in architecting, building, and managing data centers is one of balance. There are forces competing to both push together and pull apart datacenter resources. Finding an equilibrium point that is technological sustainable, operationally viable, and business friendly is challenging. The result is frequently a set of compromises that outweigh the advantages.
The datacenter represents a diverse set of orchestrated resources bound together by the applications they serve. At its most simplest, these resources are physically co-located. At its extreme, these resources are geographically distributed across many sites. Whatever the physical layout, these resources are under pressure to be treated as a single logical group.
Resource collaboration - The datacenter is a collection of compute and storage resources that must work in concert in support of application workloads. The simple requirement of coordination creates an inward force pulling resources closer together, even if only logically. How can multiple elements work together towards a common goal if they are completely separate?
The answer is that they cannot. And as IT moves increasingly towards distributed applications, the interdependence between resources only grows.
Interestingly, the performance advantages of distributed architectures are only meaningful when communication between servers is uninhibited. If the network that makes communication possible slows down, the efficacy of the distributed architecture decreases. This means that datacenter architects must solve simultaneously for compute and storage demand, and the interconnect capacity required between them.
Resource availability - Building out a datacenter is an exercise in matching resource capacity to demand. But not just in aggregate.
Individual applications, tenants, and geographies all place localized demands on datacenter resources. If the aggregate demand is sufficient but the resources exist in separate resource pools, you end up in a perpetual state of mismatch. There is always too much or too little workload capacity. The former means you have overbuilt. The latter leaves you wanting for more, which oddly enough means you end up having to overbuild.
Combatting these resource islands requires pulling resources closer together. In the most simple case, this is a physical act. But even if resources cannot be physically co-located, there are entire classes of technologies whose primary function is to allow physically separate resources to behave as if they are in close proximity.
Of course this does not come without a cost. The complexity of managing the disparate technologies required to logically pool physically separate resources can be prohibitively difficult. Even the most skilled specialists have to invest time in creating a properly engineered fabric between sites that accounts for queuing, prioritization, load balancing, and so on. The number of protocols and technologies required is high, and the volume of devices over which they must be applied can be huge. The result is a level of complexity that makes the network more expensive to manage and more difficult to change.
Organizational process - Friction is greatest at boundaries. Whenever a task requires involvement across different organizations or teams, the act of human coordination imposes a tax on both effort and time. In larger organizations, the handoff between teams might be automated to reduce communication mistakes (as with a ticketing system), but the shift in context is still expensive.
This creates organizational pressure to pull together things that might otherwise be separate. If distributed resources can be logically centralized and managed within a common organization, it reduces the dependence on outside teams. The removal of boundaries from common workflows lowers organizational friction and makes easier the overall task of managing the infrastructure.
At the same time that forces are pulling things together, there are equally strong oppositional forces exerting outward pressure on datacenter resources.
Business continuity - For many companies, the datacenter represents a mission critical element of their infrastructure. For companies whose existence depends on the presence of the resources within the datacenter (be they data, servers, or applications), it is untenably risky to rely on a single physical site. This exerts an outward force on resources as companies must create multiple physical sites, typically separated by enough distance that a disaster would not meaningfully impact all sites.
Despite the operational desire to keep things together, the risk to the business dictates that resources be physically separate.
Natural expansion - As resources are added to a datacenter, they are typically installed in racks in relative close proximity to each other. When racks are empty, there is no reason to unnecessarily create physical separation between resources working in concert. Over time, adjacent rack space is filled through the natural expansion of compute, storage, and networking capacity.
As equipment expands, available rack space is depleted, and new racks and rows are populated. Eventually, the device sprawl can occupy entire data centers.
Imagine now that a cluster of servers occupies a rack in one corner of the datacenter. If that cluster is to be expanded, where does the next server go? If the nearby racks are already built out, that resource must be installed some physical distance away from the resources with which it must coordinate.
It is near impossible to plan for all future growth at the time of datacenter inception. Leaving enough space in adjacent racks to account for a decade of growth is impractically expensive. A sparsely populated datacenter suffers from poor space utilization, challenging power distribution, and difficult cabling. Thus, the mere act of expansion actually exerts an outward force leading to physically distributed resources.
Real estate - Sometimes, even when architects want to keep resources together, physical limitations create problems. There is no more immovable object than real estate (which serves as a proxy for all of space, power, and HVAC). In some cases, it is impossible to build out either laterally or even up. In other cases, there is no additional power to be had from the grid. Either of these scenarios forces an expansion to another site, which requires the physical separation of resources that might be expected to function in concert.
Additionally, as land rates change and technologies evolve, the best spots for data centers are not always known. It is difficult at best to predict with enough certainty how a physical site will evolve over an arbitrarily long time horizon. For example, not long ago, the thought of building cooling-hungry data centers in the hot desert was foreign. Today, Las Vegas is home to some of the most cutting edge facilities in the world. This means that geographical dispersion is likely a certainty for large companies. The forces pulling resources physically apart are unlikely to be neutralized.
Finding a balance
Given the strong forces working to keep resources logically together and the equally strong forces keeping them physically separate, how does anyone find a balance?
The price for balance is cost and complexity. You pay for reach directly, and control requires complexity. Both translate into higher carrying costs for the infrastructure. The push-pull dynamic in datacenters is not going away anytime soon. In fact, a move towards more distributed applications will only make harder the balancing act that already exists.
Newer technology offerings like SDN and datacenter fabrics offer some hope, but only insofar as they offer alternatives to the existing problems. Whatever the solution, architects will need to evaluate approaches based not just on the features but on the long-term costs of those features.
[Today’s fun fact: “Way” is the most frequently used noun in the English language. No way!]
SYS-CON Events announced today that Vitria Technology, Inc. will exhibit at SYS-CON’s @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Vitria will showcase the company’s new IoT Analytics Platform through live demonstrations at booth #330. Vitria’s IoT Analytics Platform, fully integrated and powered by an operational intelligence engine, enables customers to rapidly build and operationalize advanced analytics to deliver timely business outcomes ...
Apr. 27, 2015 06:00 AM EDT Reads: 2,660
BroadSoft on Tuesday announced that it is a recipient of the 2014 Frost & Sullivan Market Leadership Award in the Hosted/Cloud Internet Protocol (IP) Telephony market for Latin America. According to Frost & Sullivan market research, the Latin America (LATAM) hosted/cloud Internet Protocol (IP) telephony market, including integrated unified communications and collaboration (UC&C) applications, is currently experiencing a rapid growth trajectory and is expected to exhibit a tenfold rise in annual...
Apr. 27, 2015 06:00 AM EDT Reads: 2,405
SYS-CON Events announced today that Alert Logic, the leading provider of Security-as-a-Service solutions for the cloud, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® and DevOps Summit 2015 New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo® and DevOps Summit 2015 Silicon Valley, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
Apr. 27, 2015 05:45 AM EDT Reads: 2,070
SYS-CON Events announced today that Plutora, Inc., the leading global provider of enterprise release management and test environment management SaaS solutions, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Headquartered in Mountain View, California, Plutora provides enterprise release management and test environment SaaS solutions to clients in North America, Europe and Asia Pacific. Leading companies ...
Apr. 27, 2015 05:30 AM EDT Reads: 1,923
SYS-CON Events announced today that Akana, formerly SOA Software, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Akana’s comprehensive suite of API Management, API Security, Integrated SOA Governance, and Cloud Integration solutions helps businesses accelerate digital transformation by securely extending their reach across multiple channels – mobile, cloud and Internet of Thi...
Apr. 27, 2015 05:00 AM EDT Reads: 2,050
SOASTA, the leader in performance analytics, today reported record growth of the CloudTest community, exceeding 30,000 registered users of the CloudTest platform in Q1 2015. SOASTA also announced widespread adoption of its Web and mobile testing solutions, with more than 1,600 customers completing more than 285,000 tests using CloudTest during the quarter. This rapid growth shows that DevOps-driven digital businesses are embracing a more continuous approach to testing, and CloudTest is meeting t...
Apr. 27, 2015 05:00 AM EDT Reads: 1,578
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular In...
Apr. 27, 2015 04:45 AM EDT Reads: 2,068
Apr. 27, 2015 04:45 AM EDT Reads: 1,390
SYS-CON Events announced today that SafeLogic has been named “Bag Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. SafeLogic provides security products for applications in mobile and server/appliance environments. SafeLogic’s flagship product CryptoComply is a FIPS 140-2 validated cryptographic engine designed to secure data on servers, workstations, appliances, mobile devices, and in the Cloud....
Apr. 27, 2015 04:30 AM EDT Reads: 2,125
SYS-CON Events announced today that FierceDevOps will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. FierceDevOps keeps software developers and IT operations personnel updated on the latest news and trends around the rapidly evolving role of the traditional IT worker.
Apr. 27, 2015 04:15 AM EDT Reads: 2,139
SYS-CON Events announced today that StorPool Storage will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. StorPool is distributed storage software that allows service providers, enterprises and other cloud builders to run data storage on standard x86 servers, instead of using expensive and inefficient storage arrays (SAN).
Apr. 27, 2015 04:00 AM EDT Reads: 2,249
GENBAND has announced that SageNet is leveraging the Nuvia platform to deliver Unified Communications as a Service (UCaaS) to its large base of retail and enterprise customers. Nuvia’s cloud-based solution provides SageNet’s customers with a full suite of business communications and collaboration tools. Two large national SageNet retail customers have recently signed up to deploy the Nuvia platform and the company will continue to sell the service to new and existing customers. Nuvia’s capabili...
Apr. 27, 2015 03:45 AM EDT Reads: 1,923
SYS-CON Events announced today that QTS Realty Trust, one of the nation’s largest and fastest-growing providers of data center facilities and cloud services and a leader in security and compliance, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. QTS Realty Trust, Inc. (NYSE: QTS) is a leading national provider of data center solutions and fully managed services, and a leader in security and compliance...
Apr. 27, 2015 03:45 AM EDT Reads: 1,944
SYS-CON Events announced today that IndependenceIT, a leading software provider of simplified IT management solutions for workspaces, applications and desktops-as-a-service, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IndependenceIT's Cloud Workspace® Suite combines application, end-user and infrastructure management into a seamless, easy-to-manage platform, with a unified management interface an...
Apr. 27, 2015 03:15 AM EDT Reads: 2,879
SYS-CON Events announced today that that Innodisk, the service-driven provider of industrial embedded flash and DRAM storage products and technologies, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Innodisk is a service-driven provider of industrial embedded flash and DRAM storage products and technologies. With satisfied customers across the embedded, aerospace and defense, cloud storage markets an...
Apr. 27, 2015 03:00 AM EDT Reads: 2,945
SYS-CON Events announced today that WSM International (WSM), the world’s leading cloud and server migration services provider, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. WSM is a solutions integrator with a core focus on cloud and server migration, transformation and DevOps services.
Apr. 27, 2015 02:45 AM EDT Reads: 2,007
SYS-CON Events announced today that Site24x7, the cloud infrastructure monitoring service, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Site24x7 is a cloud infrastructure monitoring service that helps monitor the uptime and performance of websites, online applications, servers, mobile websites and custom APIs. The monitoring is done from 50+ locations across the world and from various wireless carr...
Apr. 27, 2015 02:30 AM EDT Reads: 2,091
Sonus Networks introduced the Sonus WebRTC Services Solution, a virtualized Web Real-Time Communications (WebRTC) offer, purpose-built for the Cloud. The WebRTC Services Solution provides signaling from WebRTC-to-WebRTC applications and interworking from WebRTC-to-Session Initiation Protocol (SIP), delivering advanced real-time communications capabilities on mobile applications and on websites, which are accessible via a browser.
Apr. 27, 2015 02:30 AM EDT Reads: 2,004
SYS-CON Events announced today that Intelligent Systems Services will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Established in 1994, Intelligent Systems Services Inc. is located near Washington, DC, with representatives and partners nationwide. ISS’s well-established track record is based on the continuous pursuit of excellence in designing, implementing and supporting nationwide clients’ mission-cri...
Apr. 27, 2015 02:15 AM EDT Reads: 2,819
SYS-CON Events announced today that B2Cloud, a provider of enterprise resource planning software, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. B2cloud develops the software you need. They have the ideal tools to help you work with your clients. B2Cloud’s main solutions include AGIS – ERP, CLOHC, AGIS – Invoice, and IZUM
Apr. 27, 2015 02:00 AM EDT Reads: 3,587