In this assessment, solid-state storage is defined as storage that uses solid-state drives (most frequently various types of flash memory) to store data. This storage can reside in a storage controller or in a server, but for this survey we are considering use cases limited to hybrid and All-Flash storage arrays. In hybrid or tiered arrays, a portion of the drives in the array are solid-state and house the most active data on the array. In All-Flash arrays, all the drives in the array are solid-state.
In this assessment, converged infrastructure platforms are defined as:
An integrated platform that combines compute, storage, network and virtualization technologies, sometimes from different vendors, into a single rack, providing a turnkey configuration and deployment experience (i.e., fully configured, racked, and tested).
While hyper-converged platforms are defined as:
A software-defined infrastructure approach that combines compute, storage, networking, and data services in a single system. Enabled by a distributed architecture, clustering multiple systems forms a shared resource pool and enables high availability, workload mobility, and efficient scaling of performance and capacity.
In this assessment, scale-out storage is defined as an architecture that allows a company to increase available storage resources, both capacity and processing power, by adding entire nodes (e.g., a server with storage software and media) to a cluster. In turn, the resulting cluster of nodes acts as a single pool of storage capacity.
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In this assessment, software-defined data center or SDDC (e.g., software-defined storage, networking, etc.) is an umbrella term for the increasingly popular approach of taking hardware functionality and management features and placing it in software. This is usually – although not exclusively – done to enable the use of less expensive commodity hardware and reduce vendor lock-in.
In this assessment, DevOps is defined as an emerging application development and deployment approach that emphasizes increased collaboration and communication between software developers and IT operations professionals, as well as the use of new technologies that increase automation of software delivery and infrastructure changes.