Cohesity’s Strict Consistency Implementation and What It Means to VMware vSphere and VMware Cloud Foundation for Data Resiliency and High Availability
This year at VMworld during my “Enterprise Protection and Reliability for VMware Cloud Foundation with Cohesity” presentation in both Las Vegas and Barcelona, I discussed the topic of consistency models and the different implementation options applied in distributed computing and storage systems. One of the reasons I included this topic as part of my presentation was that I wanted to raise awareness around the importance of the implementation of consistency models in general from architecture and technology perspective. I feel that this is an important concept to understand when looking to the use or procuring any data protection and recovery solution based on distributed storage architectures.
Consistency models are resiliency and availability techniques implemented in distributed systems for data accessibility and availability. I’m going to cover two consistency models in particular – Eventual Consistency and Strict Consistency. I will describe and demonstrate their concepts and behavior and their applicability in the context of VMware vSphere and VMware Cloud Foundation and Cohesity. While I will cover the logical implementation and behavior of the consistency models from the Cohesity implementation perspective, It is crucial for everyone to consider this as a general technological approach that applies to any suitable traditional and modern data protection and recovery product sold by any vendor.
For specific details on this topic of Eventual and Strict consistency for the Cohesity DataPlatform check out the article Strict vs. Eventual Consistency written by Apurv Gupta, Chief Architect at Cohesity. Now to set the context, I will begin by providing an abbreviated description for both consistency models, and then I will present a logical illustration their functions before mapping them to what they mean to a VMware vSphere and VMware Cloud Foundation environments.
Via Rawlinson Rivera at Punching Clouds.