A system administrator needs to spread data storage allocation across multiple physical drives and ensure that these are mapped properly to communicate with the virtual server farm. The administrator

A Virtual LUN abstracts the physical storage, enabling data to be distributed across multiple physical drives within a storage pool and presented as a single logical unit to virtual servers. This abstraction allows for flexible, on-demand provisioning and de-provisioning of storage without being tied to specific physical hardware.

Subnet masking is a networking concept used to segment IP addresses and networks, unrelated to storage allocation.

Multipathing is a technique that provides redundant data paths between a server and storage, enhancing availability and performance, but it does not define the storage allocation method itself.

A Physical LUN represents a direct, non-abstracted logical unit carved directly from a physical storage array, which lacks the flexibility for dynamic mapping and underlying physical drive abstraction needed for virtual server environments.