QuantaStor Platform vs iTernity iCAS FS comparison

iTernity and OSNexus are both solutions in the Software Defined Storage (SDS) category. iTernity is ranked #38, while OSNexus is ranked #37. iTernity holds a 0.1% mindshare in SDS, compared to OSNexus’s 0.1% mindshare.

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Executive Summary

We performed a comparison between iTernity iCAS FS and QuantaStor Platform based on real PeerSpot user reviews.

Find out what your peers are saying about StarWind, Red Hat, Nutanix and others in Software Defined Storage (SDS).

To learn more, read our detailed Software Defined Storage (SDS) Report (Updated: August 2025).

Buyer's Guide

Software Defined Storage (SDS)

August 2025

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Pure Storage FlashBlade

Mindshare comparison

As of August 2025, in the Software Defined Storage (SDS) category, the mindshare of Pure Storage FlashBlade is 4.4%, up from 4.4% compared to the previous year. The mindshare of iTernity iCAS FS is 0.1%. The mindshare of QuantaStor Platform is 0.1%, down from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Software Defined Storage (SDS) Market Share Distribution
Product	Market Share (%)
Pure Storage FlashBlade	4.4%
QuantaStor Platform	0.1%
iTernity iCAS FS	0.1%
Other	95.4%

Software Defined Storage (SDS)

Featured Reviews

Eric Black

Solutions Architect at Recovery Point Systems

The ability to leverage multi-tenancy along with immutability is a huge benefit for us

The only thing I feel FlashBlade is missing is the SOS API. If it had SOS API, that would put it well over the top. Veeam Backup specifically has started to streamline their API, and they are doing that with SOS API. They have optimized it. Any of the S3 devices out there that support this SOS API can have far more API calls at once. On our side, that translates to better restoration. With SOS API, it can leverage far more restorations at a single given time or read from the device in simple terms. That results in maximizing the output and throughput from the device itself.

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Financial Services Firm

12%

Manufacturing Company

10%

Government

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	11
Midsize Enterprise	11
Large Enterprise	20

No data available

Questions from the Community

What do you like most about Pure Storage FlashBlade?

The tool's most valuable feature is its fast performance, especially in handling snapshots. It helps during power out...

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What is your experience regarding pricing and costs for Pure Storage FlashBlade?

The pricing of Pure Storage FlashBlade is expensive compared to other products I used from other companies in the pas...

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What needs improvement with Pure Storage FlashBlade?

I believe there is not much improvement needed because they have everything we need, but the interface is a little bi...

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Comparisons

Dell PowerScale (Isilon) vs Pure Storage FlashBlade

Compared 19% of the time

MinIO vs Pure Storage FlashBlade

Compared 10% of the time

Red Hat Ceph Storage vs Pure Storage FlashBlade

Compared 10% of the time

Pure Storage FlashArray vs Pure Storage FlashBlade

Compared 10% of the time

VAST Data vs Pure Storage FlashBlade

Compared 9% of the time

More Pure Storage FlashBlade Competitors

No data available

Product Reports

Buyer's Guide

Pure Storage FlashBlade

August 2025

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Buyer's Guide

Software Defined Storage (SDS)

August 2025

Download iTernity iCAS FS product report

Buyer's Guide

Software Defined Storage (SDS)

August 2025

Download QuantaStor Platform product report

Overview

FlashBlade is the industry’s most advanced scale-out storage for unstructured data, powered by a modern, massively parallel architecture to consolidate complex data silos (like backup appliances and data lakes) and accelerate tomorrow’s discoveries and insights.

Pure Storage

iTernity iCAS FS offers reliable and scalable data storage for compliance-driven environments. Users praise its data protection capabilities, storage optimization, and compliance management tools.

It streamlines processes, increases efficiency, and improves communication within organizations. It's ideal for archiving, data integrity, disaster recovery, and long-term retention of sensitive information.

iTernity

QuantaStor Platform offers versatile storage management capabilities for creating scalable solutions, consolidating storage systems, managing across sites, and ensuring data security with advanced encryption.

It simplifies provisioning, improves performance, enhances accessibility, and supports disaster recovery. Users value its intuitive interface, robust security, high performance, scalability, and flexibility in supporting various protocols and hardware configurations.

OSNexus

Sample Customers

ServiceNow, Mercedes-AMG Petronas Motorsport, Dominos, Man AHL

1. ABN AMRO 2. AIG 3. Allianz 4. Aon 5. Assurant 6. AXA 7. Bank of America 8. BNP Paribas 9. Citigroup 10. Credit Suisse 11. Deutsche Bank 12. Euler Hermes 13. Fidelity Investments 14. Generali 15. HSBC 16. ING 17. JPMorgan Chase 18. Lloyd's 19. MetLife 20. Munich Re 21. Prudential Financial 22. RenaissanceRe 23. Swiss Re 24. The Hartford 25. Tokio Marine 26. Travelers 27. Unum 28. Zurich Insurance

1. Accenture 2. Acer 3. Adidas 4. Aetna 5. Airbus 6. Akamai 7. Alibaba 8. Allianz 9. Amazon 10. American Express 11. Amadeus 12. AMD 13. Anadolu Efes 14. Ansys 15. Apple 16. Aruba Networks 17. AT&T 18. Autodesk 19. BAE Systems 20. Baidu 21. Bayer 22. Ben & Jerry's 23. Boeing 24. BNP Paribas 25. BMW 26. Cisco 27. Continental 28. Dell Technologies 29. DHL 30. Equinix 31. Ericsson 32. ExxonMobil 33. FedEx 34. Fiat Chrysler 35. Ford 36. Freescale Semiconductor 37. Hitachi 38. Honeywell 39. IBM 40. Intuit 41. Kellogg's 42. Kia 43. L'Oréal 44. McKinsey 45. MetLife 46. Mitsubishi 47. Nissan 48. Nike

Buyer's Guide

Software Defined Storage (SDS)

August 2025

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