![]() In the silo model, each tenant has their own set of infrastructure resources. These models define how you partition your data and separate your infrastructure to achieve tenant isolation. SaaS Partitioning Modelsīefore diving into the specifics of Amazon Redshift, it will be beneficial to understand three commonly used SaaS partitioning models-silo, pool, and bridge. Most importantly, we will examine the features inside Amazon Redshift that achieve consistent performance when multiple tenants share the same Amazon Redshift cluster. I will explain strategies that are commonly used to partition and isolate tenant data in a SaaS environment, and how to apply them in Amazon Redshift. ![]() In this post, I explain how to harness Amazon Redshift, a fully managed, petabyte-scale data warehouse, to address these common challenges and build a scalable, multi-tenant SaaS solution on AWS. I am a Partner Solutions Architect for AWS SaaS Factory, an AWS Partner Network (APN) program that helps organizations maximize innovation and agility by building on AWS. This is usually a must-have requirement in a pay-as-you-go model. Another challenge is determining tenant consumption using some sort of system- and/or application-generated metrics. You have to limit certain actions depending upon what tier the tenant has subscribed to. The pricing and tiering strategy of your SaaS solution will also influence the overall design. Given multiple tenants will be actively using your SaaS solution simultaneously, you have to address the challenge of sharing cluster resources and enforcing appropriate resource allocation strategies. You will also be required to come up with security measures to prevent cross-tenant data access, commonly referred to as tenant isolation. Your data partitioning strategy will determine how you choose to physically or logically separate one tenant’s data from another. Tenant isolation, performance, noisy neighbor effect, pricing strategy, and a range of other factors will influence the design choices you make. One essential decision you’ll have to make is how to partition data for each tenant of your system. Software-as-a-Service (SaaS) presents developers and architects with a unique set of challenges. By Anubhav Sharma, Partner Solutions Architect, AWS SaaS Factory
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