What type of storage offers the lowest latency in Azure?

Ultra Disk storage in Azure is designed to deliver the lowest latency for I/O operations. This type of storage is optimized for performance and provides high throughput as well as very low input/output operations per second (IOPS) latencies, making it suitable for workloads that require extreme performance and responsiveness, such as large databases and mission-critical applications.

Ultra Disks support provisioning of both IOPS and throughput independent of disk size, allowing you to tailor performance to meet specific application needs. This customization ensures that you achieve the lowest latency possible compared to other storage options in Azure.

In contrast, while Premium SSDs also offer low latency, they typically do not match the performance benchmarks set by Ultra Disks. Standard SSDs are further down in terms of performance, providing a cost-effective solution but with higher latencies. File Storage serves a different purpose, focusing on managed file shares, and is not optimized for the ultra-low latency required by high-performance applications. Thus, Ultra Disk is clearly the choice for the lowest latency in Azure storage solutions.