What accurately describes an object-based storage device (OSD)?

Object-Based Storage Device (OSD): OSDs manage data as objects, which contain the data itself, metadata, and a globally unique identifier.

Address Space: In object storage, all objects exist at the same level in a flat address space, meaning there is no hierarchical structure like in traditional file systems.

Namespace: Object storage systems use a single namespace to manage objects, making it easier to scale and manage large amounts of data.

References: Dell ISM V5 Course, Module on Object-Based Storage Systems.