Splunk® has become a mission critical application. Thousands of organizations are gaining insight from their machine data and transaction logs using Splunk, and many more are planning to deploy Splunk. No matter what stage you’re in, having guidelines to follow can help improve the Splunk experience. Since a mission critical data application deserves a mission critical data platform, Pure Storage® built the solution on the Pure FlashStack™ converged infrastructure solution. FlashStack is a joint offering from Cisco® and Pure Storage. This paper is intended to provide a framework for designing and sizing a high-performance, scalable, and resilient Splunk platform. Pure Storage is a leading all-flash array provider focused on reducing storage complexity while improving Splunk performance, resiliency, and efficiency. To assure that your Splunk platform is sized appropriately, Pure Storage tested Splunk Enterprise on Pure’s FlashStack platform.