Connecting the PPS system to any number of suppliers, each with its own protocol and data format, can lead to a significant amount of code that must be developed.

Logical volumes (LVs) point to a set of specific PPs; a single LV can point to up to three PPs for mirroring through the logical partitions (LPs) mapping.

This opens up the prospect of configuring VGs with a relatively small number of disks and fine-grained storage allocation options through a large number of PPs, which are small in size.