kentoh - Fotolia
The reason to choose a converged vs. hyper-converged system boils down to a single word: flexibility. Converged...
and hyper-converged systems are designed to make server virtualization easier to implement by taking the guesswork out of hardware selection. The idea is that a converged or hyper-converged system provides a set of matched hardware components that includes storage, networking and compute.
Converged systems use a hardware-based approach to virtualization. In other words, the compute, networking and storage components are all hardware-based and act as building blocks of the converged system. In contrast, hyper-converged systems use a software-defined infrastructure on top of physical components. This is an important distinction because it means converged systems are much more flexible.
Although components in a converged system are designed to work together to accomplish a common goal, there is no rule that requires the hardware to be used that way. If you want to use a compute module for a different purpose, you can do so. In a hyper-converged infrastructure, however, the software makes the rules and you cannot use components in an individual manner.
Another advantage to using a converged vs. hyper-converged infrastructure is that in some cases you may not have to purchase a large unit consisting of matched components. It may be possible to use a reference architecture approach, which allows an organization to use existing or new hardware to build the equivalent of a pre-built converged system. EMC, for example, offers a reference architecture with EVO: RAIL .
Regardless of whether it uses a building block or reference architecture approach, converged systems are usually less expensive than comparably equipped hyper-converged systems because of the cost associated with the required software. Some vendors argue that while startup costs are usually higher, hyper-converged systems are less expensive in the long run due to lower maintenance costs.
Running storage services in a converged architecture
Could converged storage systems mean the end of best-of-breed offerings?
Hyper-converged storage products offer more differentiation
Hyper-converged offerings provide modernization at a low cost
Dig Deeper on Converged Infrastructure Management
Related Q&A from Brien Posey
Organizational resilience encompasses everything a company needs to run in times of crisis. These examples show how businesses handle tough ... Continue Reading
There are several different methods to cloud storage encryption. These best practices for encryption can help improve security of important cloud ... Continue Reading
While only a small number of hardware vendors offer DPUs, the technology has significant implications for IT storage systems -- and the admins who ... Continue Reading