A datacenter has a hierarchy of multiple storage systems with SSDs, FC disks, SATA disks, and JBODs. Which of the following classifies this arrangement?

LVM (Logical Volume Manager) is a system for managing disk space that allows for flexible volume creation and resizing, but it does not define a hierarchy of different physical storage types.

FCoTR (Fibre Channel over Token Ring) is an obsolete protocol that describes Fibre Channel traffic running on Token Ring networks and is unrelated to the organization of different storage media types.

Storage tiers refer to the arrangement of different types of storage media, such as fast SSDs, moderate Fibre Channel disks, and slower SATA disks, into a hierarchy. This arrangement optimizes data placement based on performance requirements, cost, and availability characteristics.

HSM (Hierarchical Storage Management) is a system that automates the movement of data between different storage tiers based on usage and age, but the underlying hierarchical arrangement of the storage media itself is defined as 'tiers'.