Pluralsight

Oct 22, 2024

Feature Cloud ComputingHybrid CloudIT Strategy No longer incidentally on multiple clouds, IT leaders are making a point of reaping the benefits of intentional multicloud flexibility. But key issues — interoperability in particular — add complexity to the calculus. Credit: Ground Picture / Shutterstock Cloud strategies are undergoing a sea change of late, with CIOs becoming more intentional about making the most of multiple clouds. But managing multicloud environments presents unique challenges, especially when it comes to the interoperability and workload-fluidity issues at the center of more deliberate — rather than happenstance — multicloud strategies. “A lot of ‘multicloud’ strategies were not actually multicloud. They were mostly in one cloud with a few workloads in a different cloud. Or they were multicloud by accident, in which they acquired a company using a separate cloud or someone went rogue or had a preference due to skill set or pricing,” says Forrester analyst Tracy Woo. “Today’s strategies are increasingly multicloud by intention,” she adds. “This makes a much heavier lift, though, for CIOs and their teams.” CIO Tom Peck says wholesale food distributor Sysco is “absolutely a multicloud enterprise” and sees the advantages and disadvantages of multicloud clearly. “On the good, you get the benefits that may be unique to each provider and can price shop to some degree,” he says. “But on the bad side, the ability to dynamically move compute from cloud-to-cloud and/or throttle up/down compute is overhyped.” Interoperability and connectivity are key issues for the more than 80% of enterprises that have adopted a multicloud model, says Sid Nag, vice president of cloud services and technologies at Gartner. “The reality is, stitching it together, instrumenting all that, is very hard, which is why you’ll often see multicloud adoption projects fail,” says Nag, who maintains that the current batch of connectivity technologies from cloud providers do not work well. “They never really talk to each other seamlessly to make multicloud work.” These and other issues that come with operating in multiple — and likely hybrid — cloud environments challenges CIOs’ abilities to devise cost-effective strategies for leveraging each platform’s unique benefits while ensuring resiliency and long-term portability for their organizations — just as AI comes on as a compounding and complicating factor. A market in need of more interoperability Systems integrators and cloud services teams have stepped in to remedy some of multicloud’s interoperability hurdles, but the optimal solution is for public cloud providers to build APIs directly into the cloud stack layer, Gartner’s Nag says. A cross-cloud integration framework built of APIs could connect public clouds seamlessly in a many-to-many fashion, the research firm maintains. Oracle is providing a different template. The company’s recently announced plans to provide deep, seamless connectivity from Oracle Cloud Infrastructure to AWS , after similar announcements for Microsoft Azure and Google Cloud, have raised eyebrows. As part of the deal, Oracle would make its Oracle Autonomous Database available on dedicated infrastructure on AWS as Oracle Database@AWS, which will enable Oracle customers to take advantage of zero-ETL integration between Oracle Database services and AWS services, according to the company. In addition, with Google and Microsoft, Oracle has interconnect agreements in place so that users are not charged for moving data out of Oracle Cloud and into Google and Microsoft, says Adam Reeves, IDC research director on PaaS for developers of modern and edge applications. “It was one of those hell freezes over moment like you never saw it coming,” adds Rob Tiffany, IDC research director focused on private and hybrid cloud computing. “If we can put Oracle hardware and a subset of Oracle Cloud deep inside each of the hyperscalars, [customers] will get insane performance that they require for Oracle running SAP or whatever. It is a deeper level of integration.” The hybrid cloud factor A modicum of interoperability between public clouds may be achieved through network interconnects, APIs, or data integration between them, but “you probably won’t find too much of that unless it’s the identical application running in both clouds,” IDC’s Tiffany says. True interoperability between public clouds may potentially be achieved through APIs or data integration between various public clouds, IDC’s Tiffany says, but “you probably won’t find too much of that unless it’s the identical application running in both clouds.” The other means of interoperability is a hub and spoke integration between a customer’s on-premises private cloud and one or more public clouds to bring hybrid cloud computing to life, he says. Tiffany further explains that multicloud is generally just a more complicated form of hybrid cloud. He notes that private, dedicated network capabilities supported by each public cloud, including AWS Direct Connect, Azure ExpressRoute, Google Dedicated Interconnect, and OCI FastConnect, help facilitate the necessary integrations. Data center players that are “cloud adjacent” and work with those connectors include, for example, Equinix and Digital Realty, Tiffany adds. HPE and Dell are top among the roster of private cloud vendors tapping into enterprise customer demands for interoperability as well, including for gen AI workloads on the cloud. HPE, for instance, announced a private cloud solution with Nvidia called HPE Private Cloud AI that gives CIOs a turnkey solution for quickly deploying a private cloud with interconnects to the public cloud. Networking vendors and AI startups are also taking aim at interoperability issues associated with multicloud. Juniper, for example, is developing AI-powered software for orchestrating application connections across public clouds, collocation sites, and on-premises data centers, the company claims. The project, Cloud Interlink, is being incubated in its Juniper Beyond Labs. “We have witnessed the emergence of highly distributed applications making the underlying network even more critical for providing seamless end-to-end user experiences,” says Raj Yavatkar, CTO of Juniper Networks. AI startups are getting in the interoperability game as well. Stardog, an AI startup that counts Morgan Stanley, NASA, and Schneider Electric among its customers, recently announced a private GPU cloud facility powered by Nvidia in Ashburn, Va. The company is taking a data fabric approach to enabling enterprises to interconnect data across a wide range of SaaS, cloud, and on-prem data sources. Multicloud is becoming a reality because big enterprise does not want to be locked into a single cloud or face huge fees to move workloads efficiently, says Stardog CEO Kendall Clark, acknowledging that the additional complexity, especially for AI, is real and expensive but maintains that demand will drive innovation for interoperability. CIOs on multicloud’s complexities Like many enterprises, Ally Financial has embraced a primary public cloud provider, adding in other public clouds for smaller, more specialized workloads. It also runs private clouds from HPE and Dell for sensitive applications, such as generative AI and data workloads requiring the highest security levels. “The private cloud option provides us with full control over our infrastructure, allowing us to balance risks, costs, and execution flexibility for specific types of workloads,” says Sathish Muthukrishnan, Ally’s chief information, data, and digital officer. “On the other hand, the public cloud offers rapid access to evolving technologies and the ability to scale quickly, while minimizing our support efforts.” Yet, he acknowledges a multicloud strategy comes with challenges and complexities — such as moving gen AI workloads between public clouds or exchanging data from a private cloud to a public cloud — that require considerable investments and planning. “Aiming to make workloads portable between cloud service providers significantly limits the ability to leverage cloud-native features, which are perhaps the greatest advantage of public clouds,” Muthukrishnan says. Moreover, he adds, “more clouds mean more complexity, and spreading work between cloud service providers makes it difficult to build deep expertise, and in some cases, requires multiple specialized skillsets.” That versatility of skills remains lacking today, according to Drew Firment, chief cloud strategist at Pluralsight, who claims fewer than 10% of IT pros reported in 2023 having extensive experience with more than one cloud provider. “Some organizations are not at a level of cloud maturity and employee dexterity to successfully extract value from multicloud. Adding another cloud provider to the mix without the right talent, processes, and cloud infrastructure only makes the benefits of multicloud less attainable,” he says, stressing the importance of upskilling internal talent. Ally’s Muthukrishnan agrees that maintaining public and private cloud environments requires a broad range of skills that are increasingly difficult to find. “However, as private cloud capabilities mature, many skills extend across both environments, helping to mitigate some of these challenges,” he says. “Despite these hurdles, we believe that the benefits of a multicloud strategy far outweigh the complexities.” Multicloud is also a part of American Honda Motor Co.’s IT strategy but in a more opportunistic way. Bobby Rogers, cloud transformation lead, says the automaker leverages public hyperscalers whenever possible. “But we do not design our systems to run across multiple cloud platforms. We have not found a business case for doing so, and we think that it would add unnecessary complexity and risk,” he says. “We prefer to use best-of-breed SaaS solutions where possible and run our applications on the most suitable cloud platform.” Honda is also evaluating on-prem/cloud-managed solutions for use cases that have network latency requirements. “These solutions, such as AWS Outpost, Azure Stack, or Google Anthos, allow us to bring the cloud to our data center and enjoy the benefits of both worlds,” Rogers says. The multicloud calculus Mojgan Lefebvre, EVP and chief technology and operations officer at Travelers, says a multicloud architecture not only offers enterprises the freedom to use best-of-breed cloud services but also the ability to negotiate better financial terms from each cloud provider. “Different cloud providers offer various pricing models,” she says. “A multicloud strategy allows organizations to optimize costs by selecting the most cost-effective services for their needs.”