Hyperconverged storage is one facet of hyperconverged infrastructure (HCI), in which storage is bundled with compute and networking in a single virtualized system. With this software-defined approach, flexible pools of storage replace dedicated hardware. Each node includes a software layer that virtualizes the resources in the node and shares them across all the nodes in a cluster, creating one large storage pool. Software-defined networking (SDN) and load balancing determine which hardware to serve requests from.
Hyperconverged storage makes it easier for administrators to manage resources and lower total cost of ownership for storage—securing better pricing on storage than from public cloud service providers in many situations.
With converged storage, compute, networking, and storage are also packaged as a complete solution for enterprise corporations. But while these pre-built resources are combined in a single physical appliance, they are not virtualized and pooled together as with hyperconverged storage. Instead, the components are hardware based and independent of each other; they can be separated and used for different things.
Hyperconverged storage is controlled with software and is more flexible than converged storage. With hyperconverged storage, the storage resources may be pooled or shared among several nodes.
Companies typically purchase converged storage from vendors as a part of a hardware solution. Hyperconverged storage options may also be part of a converged system for a data center, or they may be purchased separately from public cloud providers.
Hyperconverged storage delivers key advantages over traditional and legacy systems:
Potential Cons of Hyperconverged Storage:
Storage Area Network