FlashArray C Data Sheet

Pure Storage FlashArray//C

Consolidate, accelerate, and protect your data with capacity-optimized storage.

Intuitive, Evergreen Experience

  • All-flash NVMe Evergreen Storage™ with data reduction, built for 99.9999% availability, replication, and cloud portability.


  • Consolidate massive data stores with up to 8.9PB effective in a three-, six-, or nine-rack unit.


  • Predictable latency as low as 1ms, suitable for less demanding operational workloads.
  • NVMe and NVME-oF (Fibre Channel, RoCE, TCP).

Built-in Symmetric Clustering

  • ActiveCluster provides zero RPO and RTO, is easy to use, and comes built-in at no extra cost.

Better TCO

  • Pair hybrid storage economics with less management overhead, power, cooling, and data-center real estate.

Industry Recognition

  • A Gartner® Magic Quadrant™ Leader for storage nine times in a row.1
  • Certified Net Promoter Score in the top 1% of B2B Medallia

Pure Storage® FlashArray//C™ lets you consolidate workloads with consistent all-flash NVMe performance. You’ll get forward-thinking data protection—at a lower TCO than hybrid storage. 

Today, most business-critical applications run on high-performance all-flash storage arrays, but some applications still use hybrid flash and legacy disk systems. These legacy systems suffer from inconsistent performance, complex management tools, and an architecture which impairs innovators.

FlashArray//C provides a 100% NVMe all-flash foundation for less-demanding operational workloads, test and development workloads, multisite disaster recoverydata protection and content repositories. Your organization can easily improve business continuity with Pure’s ActiveCluster™ fully symmetric active/active bidirectional synchronous replication solution, which provides RPO zero and automatic transparent failover for RTO zero—and supports both Fibre Channel (FC) and TCP/IP environments.

With FlashArray//C, you can scale up to 8.9PB effective storage in three- to nine-rack units. Maximize results and flexibility for less performance-sensitive and high-capacity applications on-premises and easily connect to the cloud. With Pure Evergreen™, you can upgrade performance, capacity, and features over time without disruption.

All-flash storage solutions introduced simplicity, efficiency, and rich data services to enterprise applications that demand performance. Now, less-demanding applications gain these important benefits as well. With the Purity storage operating environment, Pure Storage delivers a comprehensive solution with FlashArray//XL and FlashArray//X for workloads that demand sub-millisecond latency and FlashArray//C for less performance-sensitive and high-capacity workloads.

All-QLC FlashArray//C Use Cases

Workload Consolidation

Data Protection and Disaster Recovery

Policy-based VM-tiering; Multicloud Test/Dev

User File Shares

FIGURE 1: FlashArray//C use cases**

Hyper-Consolidate Large Data Stores

Pure FlashArray//C densities scale from 779TB to 8.9PB in compact three- to nine-rack unit arrays, and deliver consistent performance that comes with an all-flash 100% NVMe storage solution. You can now consolidate test/dev, virtual machines, data-retention/disaster recovery, and all other less-demanding workloads on a single array. Let your IT organization drive simplicity into your infrastructure and eliminate complex siloed approaches to deploying these applications across multiple disparate hybrid disk-based solutions..

Cloud-Based Management

The Pure1® platform provides simple cloud-based management and effortless predictive support with full-stack analytics and the AI-driven power of Pure1 Meta™. Pure1 provides a snapshot catalog of all your backups in one place, whether the target is another FlashArray™, a FlashBlade®, another NFS target, or a public cloud like Amazon S3.

FIGURE 3: Purity//FlashArray features*

Purity: The Software-defined Heart of FlashArray

Purity for FlashArray delivers rich, enterprise-level data services; DirectFlash global flash management; and Evergreen improvements with every release. Features such as ActiveCluster™ for business continuity, ActiveDR™ for disaster recovery, QoS, VMware Virtual Volumes (vVols), NVMe-oF, Snap to NFS, Purity CloudSnap™, and SafeMode™ are all examples of new features provided over time with non-disruptive, no-additional-cost Purity upgrades. All Purity storage services, APIs, and advanced data services are built-in and included with every array.

  • Data reduction: Purity averages an industry-leading 5:1 data reduction with a total efficiency of 10:1 (including thin provisioning).
  • Always-on encryption: Purity’s “encrypt everything” approach provides built-in enterprise-grade data security without user intervention or key management.
  • High availability: Purity protects against concurrent dual-drive failures and initiates re-builds automatically within minutes. Purity also treats performance variability as a failure and uses parity to work around bottlenecks to deliver consistent latency.
  • Unified storage with file services: If you run NAS-based apps in addition to SAN-based enterprise databases, Purity’s consolidated SAN and NAS capabilities let you avoid the trouble and expense of running two incompatible environments.
  • Always-on ransomware remediation: Cost-efficient, portable, SafeMode snapshots prevent cyber attackers from tampering with or maliciously destroying critical recovery data.
  • Intelligent quality of service (QoS): Purity continuously tunes infrastructure using always-on QoS to prevent workloads from hogging resources and to ensure maximum utilization of the array.
  • Faster, more consistent performance: Pure DirectFlash Fabric gives you maximum throughput with microsecond latency that’s far more predictable than with conventional SSDs.
  • On-demand data portability: Quickly and easily move data where they most cost-effectively meet service level agreements to satisfy your customers: between both physical and virtual machines, between on-premises and the cloud.


FlashArray is specifically architected for innovators, moving beyond the legacy SSD architectures that have flash pretending to be a hard disk. Instead, DirectFlash speaks directly to raw NAND with a super-efficient NVMe protocol and leverages NVMe-oF. DirectFlash includes multiple components:

DirectFlash software (DFS): DirectFlash software manages array I/O globally, for a faster, more efficient architecture. It provides detailed I/O scheduling and performance management. This makes I/Os deterministic and reducing average latency by reducing the number of slow I/Os that would often occur in SSD architectures.

DirectFlash Module (DFM): DFM is a Pure-designed flash module that connects raw flash directly to the FlashArray storage via NVMe. Unlike traditional SSDs that use a flash controller or flash translation layer, DFM is just raw flash. This design removes performance roadblocks of SSDs used by many legacy storage architectures.

DirectFlash Shelf: DirectFlash Shelf is used to add additional NVMe capacity to a FlashArray//C and is external to the array chassis. Instead, it’s connected to the chassis via NVMe-oF protocol with RDMA over converged (RoCE), leveraging 50GB-per-second Ethernet. The shelf maintains the ability to support different sizes of DFMs as flash density improves and new forms become available, such as SCM, QLC, and others. 

DirectFlash Fabric: DirectFlash Fabric lowers network latency dramatically and enables enterprise-class reliability and data services via shared storage versus DAS. NVMe-oF enables massive optimization between the storage controllers and host over fast networking: FibreChannel, RoCE, and TCP. DirectFlash Fabric delivers greater performance and efficiency gains, including offloading the host CPU.

Evergreen Storage

With Evergreen Storage, you can deploy once and enjoy a subscription to continuous innovation as you expand and improve performance, capacity, density, and/or features for 10 years or more—all without downtime, performance impact, or data migrations. Pure has engineered compatibility for future technologies directly into the product via the modular, stateless architecture of FlashArray. This means you can upgrade non-disruptively and expand the equipment you already own. Evergreen programs like Ever Modern and Ever Agile provide full trade-in value when upgrading controllers, giving you the agility you need to grow and modernize. 

The Capacity Consolidation program keeps your storage dense as you expand, without becoming obsolete. With Evergreen Storage, you don’t have to re-buy terabytes you already own. Keep your storage simple, evergreen, and dense—and always meet your business needs. Pure uniquely offers all of our core solutions either as products (CAPEX) or as services (OPEX) via Evergreen//One™.

Technical Specifications









Up to 1.6PB/1.4PiB effective capacity*

Up to 482TB/438TiB raw capacity


97.7 lbs (44.3Kg) fully loaded

5.12” x 18.94” x 29.72” chassis




Up to 8.9PB/8.1PiB effective capacity*

Up to 2.3PB/2.1PiB raw capacity


97.7-185.4 lbs (44.3-84.1 kg) fully loaded 

5.12”-18.94” x 18.94” x 29.72”

* Effective capacity assumes HA, RAID, and metadata overhead, GB-to-GiB conversion, and includes the benefit of data reduction with always-on inline deduplication, compression, and pattern removal. Average data reduction is calculated at 5-to-1 and does not include thin provisioning.

** Not all features available at General Availability.
*** Effective capacity assumes HA, RAID, and metadata overhead, GB-to-GiB conversion, and includes the benefit of data reduction with always-on inline deduplication, compression, and pattern removal. Average data reduction is calculated at 5-to-1 and does not include thin provisioning.

PS1840-05 05/2022

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Pure Storage, Inc.

2555 Augustine Dr.

Santa Clara, CA 95054

800-379-7873 (general info)

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