Capacity Storage

Say Goodbye to Hybrid Storage

Enterprise-grade QLC delivers where hybrid can’t. Pure FlashArray//C—the first all-QLC flash array—delivers the NVMe performance, hyper-consolidation, and simplified management your data deserves.

All-flash Performance at 99.9999% Availability

Your 24x7 operations have no tolerance for inconsistent performance or unplanned disruptions. FlashArray//C is enterprise ready and provides proven six-nines of availability, non-disruptive upgrades, and consistent single-millisecond latency for the most demanding environments.

Making Flash Mainstream

The all-QLC FlashArray//C, with DirectFlash™ modules in 24.7TB and 49TB capacity options, delivers cost economics that eliminate the need for hard disk drives and hybrid arrays. Experience more speed and lower latencies plus significant power savings.

Maximise storage for high capacity applications

Guaranteed Data Efficiency

Pure’s DirectFlash modules and unique data-reduction technologies combine to deliver the most usable effective capacity. You don’t have to compromise array performance or resort to spinning disk or vendor gimmicks to meet data-intensive and capacity-sensitive workloads.

Get capacity-optimised all-flash storage and eliminate data silos

Highest Reliability, Best Configuration Options

Delivering 99.9999% availability with effective capacity options between 1.9PB in 3U all the way to 5.2PB in 9U, the FlashArray//C is latency-tolerant, designed for availability, and meets the capacity expansion requirements of data-intensive workloads.

QLC-optimised storage built for 99.9999% availability

Never Pay for Additional Features

A 100% non-disruptive product architecture with a flexible buying program, the Evergreen Subscription™ frees you from the complexities, risk, and expensive upgrade processes of legacy storage. And get all the features of Purity Operating Environment at no additional cost.

Consolidate high capacity data stores

FlashArray//C Specifications




Up to 797TB effective

247TB raw

3U; 1000–1240 watts (nominal–peak) 

92.2 lbs (41.8 kg)

5.12” x 18.94” x 29.72” chassis


Up to 1.2PB effective

345TB raw

3U; 1000–1240 watts (nominal–peak) 

94.4 lbs (42.8 kg)

5.12” x 18.94” x 29.72” chassis


Up to 1.9PB effective

494TB raw

3U; 1000–1240 watts (nominal–peak) 

97.7 lbs (44.3 kg)

5.12” x 18.94” x 29.72” chassis


Up to 3.2PB effective

839TB raw

6U; 1480–1760 watts (nominal–peak)

177.7lbs (80.6 kg)

5.12” x 18.94” x 29.72” chassis


Up to 3.8PB effective

984TB raw

3U; 1000–1240 watts (nominal–peak)

97.7 lbs (44.3 kg)

5.12” x 18.94” x 29.72” chassis


Up to 4.6PB effective

1.2PB raw

6U; 1480–1760 watts (nominal–peak)

185.4 lbs (84.1 kg)

15.35” x 18.94 x 29.72” chassis


Up to 5.9PB effective

1.5PB raw

9U; 1960–2280 watts (nominal–peak)

265.5 lbs (120.4 kg)

15.35” x 18.94 x 29.72” chassis


Up to 6.4PB effective

1.7PB raw

6U; 1480-1760 watts (nominal–peak)

177.7 lbs (80.6 kg)

5.12” x 18.94” x 29.72” chassis


Up to 7.3PB effective

1.9PB raw

9U; 1960–2280 watts (nominal–peak)

273.2 lbs (123.9 kg)

5.12” x 18.94” x 29.72” chassis

[*] 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.

FlashArray//C Feature Comparison


Pure Storage

Nimble Storage (HF Series)

FAS Series

Dell EMC
SC Series

Footprint for 5.2PB effective

9 rack units with 100% NVMe DFMs

64 rack units (using 10TB 7k HDDs +3.8TB SSDs for cache)

28 rack units (using 10TB 7k HDDs + PCIe FlashCache)

30 rack units (using 10TB HDDs + 1.6TB & 3.8TB SAS SSDs for cache)


Consistent 2-4ms latency; no cache misses, no hotspots, no worries

<1ms (cache hit) >5ms (cache miss)

5ms–10+ms write latency; read latency dependent on read caching via FlashCache

<1ms (cache hit) >5ms (cache miss)

End-to-End NVMe


Not supported

Not supported

Not available

QLC Flash Media

24.7TB / 49TB

Not supported

Not supported

Not available

Contoller NDU

Free Every Three – via Evergreen Gold

Data in-place upgrade >10-year long life chassis true NDU architecture of any component

Intra-chassis NDU, forklift between chassis

Via complicated aggregate relocation process, done by P.S.

Not Supported

All-inclusive Software Features

Gold and Silver

Via Timeless

Not available

Not available

Full Performance Through Failure Or Upgrade



~50% impact with controller failure per HA-pair

~50% impact with controller failure per HA-pair

Protocol Support





What is high-capacity storage?

From small offices to large enterprises, the act of setting up a local storage solution is often a balancing act between cost, capacity, and performance. High-capacity storage is data storage optimised for cost per capacity ($/GB). High-capacity storage solutions are designed to accommodate Tier 2 workloads (or higher), such as virtual machines, backups, email, and test/dev environments.

People also ask:

1. What are the benefits of high capacity storage?

The benefits of deploying your own high capacity storage solution include:

  • Reduced storage costs
  • The ability to hyper-consolidate large volumes of data
  • The flexibility to optimise storage costs by storage tier
  • Optimal storage capacity and performance for Tier 2 workloads

2. What are high capacity storage use cases?

High capacity storage is best used for Tier 2 applications, such as:

  • Disaster recovery for Tier 2 apps
  • Backups, snapshots, and mirroring
  • Multi-cloud test/dev workload consolidation
  • Policy-based VM-tiering

3. What is QLC Flash?

Quad-level cell (QLC) flash is a capacity-optimised NAND memory technology that delivers a per-terabyte cost that matches or beats hard-disk drives (HDDs).

4. QLC vs. SLC vs. MLC vs. TLC

QLC flash is the latest in a long trend of squeezing more bits per cell within a NAND flash device. Here’s a brief overview of how the technology has evolved over time:

  • Single-level cell (SLC) flash: One bit per cell, two possible voltage states
  • Multi-level cell (MLC) flash: Two bits per cell, four possible voltage states
  • Triple-level cell (TLC) flash: Three bits per cell, eight possible voltage states
  • Quad-level cell (QLC) flash: Four bits per cell, 16 possible voltage states

Don't Take Our Word for It

We work with the best across all industries.

“With FlashArray, we are able to consolidate our performance-oriented and capacity-oriented workloads on one platform, simplifying our environment and enabling us to leverage common data services and analytics across all of our data.”

Sean Donaldson
CTO, Managed Services Division

“We believe the biggest benefit of FlashArray//C is eliminating the need for slower spinning-disk solutions. We’re excited to see Pure Storage introduce an all-NVMe capacity flash storage solution.”

Keith Martin
Director of Cloud Capacity Engineering
NVME for high capacity storage applications

NVMe Performance with FlashArray//X

FlashArray//X is all-flash, 100% software-driven, and 100% NVMe storage designed to support everything from entry-level to mainstream enterprise environments and next-gen cloud-native applications.

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