Availability

In this article, we will introduce one of the most useful tools that every engineer responsible for the network layer should have in their arsenal: VPC flow logs. Back in the day when private data centers were cool, when we needed to troubleshoot network problems, we had to “tap the wire” and that could take many forms such as installing packet sniffers on various network segments or configuring complicated traffic mirroring options. Enter VPC flow logs! With the cloud and the advent of software defined networks, troubleshooting IP networks has never been easier.

As businesses increasingly migrate their applications and infrastructure to the cloud, ensuring resiliency becomes paramount to maintain service availability and minimize disruptions. Resilient cloud architectures are designed to withstand failures and recover quickly from disruptions, offering enhanced reliability and performance. This article provides an overview of resiliency patterns and trade-offs that can help architects build efficient and robust cloud solutions.

Don’t assume an outage will never affect your region. A region outage can completely knock out your services and critically affect your business application’s availability for a certain period--especially if your application is built around a single-region architecture.