Reduces initial costs

You must purchase physical drive capacity for expected future use. The unused capacity adds costs for both the storage system and software products.

You can logically allocate more capacity than is physically installed. You can purchase less capacity, reducing initial costs and you can add capacity later by expanding the pool.

Note: Some file systems take up pool space. For details, see Operating system and file system capacity.

Reduces management costs

You must stop the storage system to reconfigure it.

When physical capacity becomes insufficient, you can add pool capacity without service interruption.

In addition, with Dynamic Tiering you can configure pool storage consisting of multiple types of data drives, including SSD, SAS, and external volumes. This eliminates unnecessary costs. For VSP Fx00 models, SAS drives cannot be specified.

Reduces management labor and increases availability of storage volumes for replication

As the expected physical drive capacity is purchased, the unused capacity of the storage system also needs to be managed on the storage system and on licensed products.

Licenses for storage system software products are based on used capacity rather than the total defined capacity.

You can allocate volumes of up to 256 TB regardless of physical drive capacity.

Dynamic Tiering allows you to use storage efficiently by automatically migrating data to the most suitable data drive.

Increases the performance efficiency of the data drive

Because physical drive capacity is initially purchased and installed to meet expected future needs, portions of the capacity may be unused. I/O loads may concentrate on just a subset of the storage which might decrease performance.

Effectively combines I/O patterns of many applications and evenly spreads the I/O activity across available physical resources, preventing bottlenecks in parity group performance. Configuring the volumes from multiple parity groups improves parity group performance. This also increases storage use while reducing power and pooling requirements (total cost of ownership).