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Pure Storage Empowers Toss Bank to Drive Exceptional Digital Financial Services

Pure Storage enables South Korea’s fastest growing internet-only bank to save nearly $500,000 in disk purchasing costs, and over $120,000 in data center footprint and energy costs
Pure Storage Empowers Toss Bank

Santa Clara, Calif., – December 12, 2023 — Pure Storage® (NYSE: PSTG), the IT pioneer that delivers the world's most advanced data storage technology and services, today announced that Toss Bank, the fastest growing Internet-only bank in South Korea, is leveraging Pure Storage's all-flash storage platform to deliver reliable, always-on digital financial services to its growing customer base.

Customer Challenge:

As the fastest-growing internet-only bank, acquiring over 8 million customers in just two years, and ranked #1 in South Korea on Forbes’ The World’s Best Banks 2023 list, Toss Bank is disrupting the antiquated banking sector by providing consumers with a portfolio of secure and reliable digital-only financial services.

For Toss Bank, customer data is central to driving efficiency, improving its customer experience, and mitigating risk. Handling upwards of 9,000 transactions per second in its database, however, Toss Bank recognized the need to replace its existing storage system due to performance issues that impacted its ability to deliver optimized financial services to its customers.

Customer Impact:

By adopting Pure Storage’s all-flash storage platform, including the FlashArray™portfolio, Toss Bank gained the performance, reliability, and scalability it needs to deliver a truly modern digital financial experience. Benefits include:

  • Improved Performance for Growing Financial Transactions: With Pure Storage’s FlashArray product line, Toss Bank can reliably process 9,000 transactions per second on its database management system. With Pure Storage, Toss Bank gains the ability to scale storage volumes independent of servers, while improving the overall storage environment with increased write performance and reliability, lower costs, and support for non-disruptive upgrades.
  • Industry-Leading Data Reduction and Replication: Pure Storage’s FlashArray delivers industry-leading data reduction technology, reducing Toss Bank’s storage needs by up to 83% with a 6:1 data reduction ratio. Pure’s data reduction technology proved to be 2.5x more cost-effective than competing products in terms of effective capacity. Additionally, using FlashArray's built-in snapshot feature, Toss Bank reduced replication time from 4 hours to less than a minute - a 99% savings.
  • Reduction in Cost  and Data Center Footprint: Pure Storage’s FlashArray enabled Toss Bank to replace 400 solid state drives (SSDs), saving significant disk purchasing costs - estimated at more than $485,000 - as well as huge savings in data center footprint and energy costs - estimated at $122,000 over a five-year period.
  • AI-Powered Storage Management: Pure1®, Pure's AI-powered storage management platform, enables Toss Bank to easily track storage workload, capacity, and performance status. Proactive alerts immediately inform teams about potential challenges such as hardware degradation, software errors, and environmental issues before they can cause service interruptions.

Executive Insight:

“With Pure Storage FlashArray, Toss Bank was able to resolve performance issues of the existing storage and paved the way for reliable financial services. With the active support of the Pure Storage sales team, the all-flash products were delivered to our data center in just two weeks, accelerating our financial transformation.”

Donghyun Park
Systems Engineer, Infrastructure Team, Toss Bank

“Through Pure Storage FlashArray, Toss Bank has laid the foundation to proactively respond to the digital transformation era and deliver a differentiated financial experience to its customers. This will help the bank gain a competitive advantage in the digital financial services sector where storage is becoming increasingly important. Pure Storage is committed to supporting the transformation of financial infrastructure in Korea.” -- Jaesung Yoo, Managing Director, Pure Storage Korea

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About Pure Storage

Pure Storage (NYSE: PSTG) uncomplicates data storage, forever. Pure delivers a cloud experience that empowers every organization to get the most from their data while reducing the complexity and expense of managing the infrastructure behind it. Pure’s commitment to providing true storage as-a-service gives customers the agility to meet changing data needs at speed and scale, whether they are deploying traditional workloads, modern applications, containers, or more. Pure believes it can make a significant impact in reducing data center emissions worldwide through its environmental sustainability efforts, including designing products and solutions that enable customers to reduce their carbon and energy footprint. And with the highest Net Promoter Score in the industry, Pure's ever-expanding list of customers are among the happiest in the world. For more information, visit

Pure Storage, the "P" Logo, Pure 1 and FlashArray are trademarks or registered trademarks of Pure Storage, Inc. in the US and / or other countries. Certain names referenced in this document may be property of their respective owners.

Press Contact
Sierra Dowling
Pure Storage
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