Dell EMC owns 5.6% of the HCI market as of early 2021 and is growing.
Dell EMC, having owned VMware since the Dell-EMC merger in 2016, has the best of both worlds: It has its Dell server and EMC storage franchises already well-embedded in the world's data-center culture, plus the forward-thinking software acumen of VMware, which has instances of its software in an estimated 95% of all data centers. These three power companies engineered their IP together to produce VxRail, a fully integrated, pre-configured and pre-tested hyperconverged infrastructure system that aligns compute, memory and storage resources to match the exact requirements of end-user workloads.
Dell EMC also has partners such as Eaton to create and maintain other implementations for various other verticals. For example, Eaton Intelligent Power Manager (IPM) users of VxRail can now manage their IT applications, including power devices, as well as enhance the integrity of valuable data and business continuity by enabling automated and graceful shutdown of VxRail clusters experiencing unplanned power events.
Pros: The most important advantage here is that at Dell EMC, customers have a one-stop-shop for just about anything they need to add to their hyperconverged system menu -- thanks to a continuing relationship the company will have with VMware -- even though VMware is planned to be spun off into an independent entity later this year.
Systems at this shop are somewhat less expensive than competitors, but the final investment depends greatly on the use cases and professional services that are ultimately needed.
Cons: Dell EMC is well-known for offering service as personalized as possible, but this is a large company with many layers. So it can be a challenge to navigate through and around management (and its zillion partners) at times.