What is a FlexGroup, and when would you use one?

• A. A set of snapshots for DR.
• B. A protocol for remote replication.
• C. A scalable NAS namespace composed of many volumes that presents a single large file system; used for very large file aggregates and high scalability.
• D. A single volume with inline compression.

Answer: (C)

FlexGroup is a scalable NAS namespace that combines many volumes into one logical file system, presenting a single large file system to clients. Instead of storing all data in a single volume, you group multiple volumes together and NetApp routes I/O across them so you get parallel access and better performance as data grows. This approach is ideal when workloads involve huge datasets, very large file aggregates, or high scalability requirements across many clients.

You’d use a FlexGroup when a single volume no longer meets your capacity or performance needs, and you want to grow the namespace by adding more volumes underneath while still presenting one seamless path to users and applications. It’s particularly useful for media libraries, large scientific datasets, big data analytics, backups, and other scenarios with massive numbers of files or high throughput demands.

It’s not describing a set of snapshots, a remote replication protocol, or a single volume with inline compression, which is why the scalable, single-namespace, multi-volume approach is the correct concept here.