Describe a FlexVol and its relation to an aggregate.

• A. A metadata store.
• B. A network interface.
• C. A thin-provisioned, writable volume created within an aggregate; it uses space from the aggregate and can be resized or moved without downtime.
• D. A backup copy.

Answer: (C)

A FlexVol is a writable, thin-provisioned volume that sits inside an aggregate and uses space from that aggregate. The aggregate is the physical storage pool—disks grouped together to provide capacity and I/O resources. You carve FlexVols from this pool, and multiple FlexVols can share the same aggregate. Because FlexVols are managed by ONTAP, you can resize them or move them to another aggregate without taking the volume offline, which gives flexible capacity planning and maintenance without downtime. This is why the description that a FlexVol is a thin-provisioned, writable volume created within an aggregate—using space from the aggregate and capable of resizing or moving without downtime—best fits. It's not a metadata store, a network interface, or a backup copy, which are unrelated roles in the storage system.