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Scaling up data access and storage without scaling up costs


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Data storage solutions aid the firm to store data in the cloud or data servers efficiently with ease of retrieval and management. Data storage solutions also ensure the security of the data, ensuring that only authorized personnel can access and amend data.

The solution resolves upscaling data access and storage issues for firms. The solution allows integration of data into a data lake and enables data compression, resulting in 80% reduction of data storage as compared to traditional data storage. The solution enables faster processing and data recollection, allowing the firm to operate swiftly.

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Scaling up data access and storage without scaling up costs

  1. 1. Scaling up data access and storage without scaling up costs Case study Context: A top Indian bank was faced with a large increase in its data warehouse volumes because of a number of reasons: post- acquisition, organic growth in customer base and increasing data from online channel. Data growth was set to double over the next few years, and data compression within a ‘data lake’ was an option for cost-effective archival. However, the bank sought to ensure fast access to active warehouse data, while ensuring secure access to compressed data in parallel. Recommended configuration: • To demonstrate the platform’s capabilities, data was loaded to a Hive-staging table. Vendor solution was deployed to join the Hive-staging table with existing data warehouse tables using sample queries. • A sample interface was created to generate account statements based on consuming data from both data sources. • The solution included advanced data capabilities such as compression, encryption through customized functions and in-memory parallel processing. Client impact: • Migration to a data lake plus data compression enabled an 80% reduction in data storage. • Data queries ranged from 2 to 30 seconds depending on the query complexity. • It resulted in ease of deployment, fast performance and scalability. Contact us Challenges faced by institutions Inaccurate data extraction from legacy systems Resource-intensive reporting Isolated data sources Lack of data storage infrastructure Data segregation and security issues Advanced analytics processing requirements and complexities Varun Mittal EY Global Emerging Markets FinTech Leader Futureproofing institutions for the big data revolution Data unification Real time High-speed processing Storage optimization Minimum data replication Machine learning and AI Leading-edge tech capabilities Transaction system or CRM data Online reviews or social media data Data analytics Regulatory reporting Online applications Vendor Solution: Single view Data visualization On cloud On premise Data lake for structured and unstructured data Different kinds of API exposed by vendor/organization Real time (non-API based Kafka Database Comma- separated values (CSV) files With data lake Skip data lake Data warehouse </> REST API Website: Email: Sahil Gupta EY ASEAN FinTech Manager
  2. 2. EY | Assurance | Tax | Transactions | Advisory About EY EY is a global leader in assurance, tax, transaction and advisory services. The insights and quality services we deliver help build trust and confidence in the capital markets and in economies the world over. We develop outstanding leaders who team to deliver on our promises to all of our stakeholders. In so doing, we play a critical role in building a better working world for our people, for our clients and for our communities. EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients. For more information about our organization, please visit © 2018 EYGM Limited. All Rights Reserved. EYG no. 011378-18Gbl ED None. This material has been prepared for general informational purposes only and is not intended to be relied upon as accounting, tax or other professional advice. Please refer to your advisors for specific advice.