Hyper-converged Infrastructure

Virtual SAN (VSAN) is a radically simple, hypervisor-converged storage solution for virtual machines. It delivers high performance, scale-out storage that is optimized for virtual infrastructure.

It is an enterprise-class storage solution for any virtualized application, including business-critical workloads.

Although VSAN does many of things a traditional storage array does, it's not a traditional storage array: it's a software-based storage array that uses clusters of commodity server hardware to do its work. Storage and compute workloads run together on the exact same resource pool.

Its seamless integration with other components makes it the ideal storage platform for virtual machines.

Key benefits of this solution include:

  • Modularity – In traditional datacenter architectures, computing resources (servers), storage (SAN/NAS devices) and the network infrastructure are all separate silos and must be scaled and managed independently. In a hyper-converged infrastructure, these resources are all brought together into modular building block appliances. As you add more computing power, you also improve your network and storage capacity. With this model, scaling is linear, providing predictable costs and eliminating resource planning.
  • Virtualized Resources – In a hyper-converged infrastructure, all resources are abstracted from the underlying hardware and presented as configurable classes of capacity. This provides for a much more efficient use of resources, but more importantly allows any workload to automatically take advantage of new capacity.
  • A software-defined datacenter that lets you deploy applications, provision VMs and storage, and reconfigure the infrastructure in minutes, without changing the underlying hardware.
  • Creates an elastic, distributed platform that automatically adjusts when new resources are added. No more over-provisioning. No more capacity planning.
  • Extremely cost-effective without risking processing speed and reliability.

High-level Comparison between alternative storage solutions:

PCServerSAN StorageHyper-converged Infrastructure
  • Extremely Cheap
  • Easy to Set-up
  • Easy to Maintain
  • Reasonably Cheap
  • Data Security through Redundancy
  • Easy to Set-up
  • Easy to Maintain
  • Data Security
  • No Downtime due to Hardware Failure
  • Extremely High Performance
  • Scalable Solution
  • Data Security
  • No Downtime due to Hardware Failure
  • Significantly cheaper than SAN Storage
  • Extremely High Performance
  • Scalable Solution
  • Easy to Upgrade without affecting CAPEX
  • Flexible & Interoperable
  • Utilizing shelf hardware components (Vendor independent)
  • Extremely weak Performance
  • Data Loss due to Hard-disk Failures
  • Downtime due to Hardware Failures
  • No possible Scalability
  • Downtime due to Hardware Failures
  • Complex Set-up
  • Expensive Solution
  • Difficult to Maintain
  • Affects CAPEX during Upgrades/Replacement
  • Difficult to ensure Interoperability
  • Complex Set-up
  • Expensive in comparison with PC & Server Solutions