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Dell EMC VxFlex – Product Analysis

Last updated November 26th, 2019 for minor updates. 18-page deep dive on the architecture and functions of Dell EMC VxFlex. Download the full Product Analysis now!

Dell EMC VxFlex is a Hyperconverged Infrastructure (HCI) solution that uses a software-defined storage layer running on Dell PowerEdge servers, with networking components and management software. VxFlex OS software creates a pool of storage capacity from local flash and hard disk drives that is shared between the VMs running on each server, or node. Like most HCI solutions, VxFlex provides a standardized, agile infrastructure for supporting a wide range of potential use cases including VDI, server virtualization and private cloud, to name a few.

There are over a dozen vendors marketing HCI appliances, besides Dell EMC, including Nutanix Enterprise Cloud Platform, Cisco HyperFlex, HPE SimpliVity and NetApp HCI, among others. These and the other leading products are included in the Evaluator Group Research HCI comparison matrix and associated Product Briefs, Analyses and Evaluation Guide.


  • Characteristics
    • Performance –Server-side caching and persistent, solid-state storage is available for application acceleration.
    • Disaggregated architecture – allows storage or compute to be scaled independently, or to be combined on same node – this increases capacity efficiency and deployment flexibility
    • Storage-only architecture – can be deployed without compute nodes
    • Bandwidth/IOPS limiter – Quality of service (QoS) on a per volume basis can be set to limit certain applications from consuming the shared resources
    • Snapshots – Thinly provisioned writable snapshots and consistency groups are supported.
    • Protection domains – A protection domain is a group (domain) of VxFlex Data Servers that have volumes only consumed by the nodes in the domain.
    • Multi-tenancy – Through use of storage pools and protection domains, the isolation of data can be achieved.
    • Local Replication (two-copy “mesh” mirroring) – This helps to prevent a single point of failure with the software and can result in higher availability.
    • Auto-rebuild – The ability to auto recover data from a failure gives the software a chance to self-heal the virtual SAN.
    • Auto-rebalance – If storage is added or removed, data will be automatically rebalanced among the nodes.
    • Elasticity – VxFlex OS has the ability to grow or shrink the number of server nodes and associated DAS capacity non-disruptively when needed.
    • Storage Pools and Tiers – Multiple tiers or pools of storage can be created to enable levels of service for specific performance requirements
Dell EMC VxFlex Product Analysis Includes: 
  • Highlights
  • Overview of System
  • Hardware Architecture
  • Software Architecture
  • Management
  • Data Services
  • Other Features
  • Evaluator Group Comments

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