After proposing an HP 3PAR SToreServ 7000 Storage System solution, a customer asks about the benefits of future disk drive expansion. What are the primary performance and capacity differentiators…

In HP 3PAR StoreServ, adding disk drives expands the common pool of physical storage, making the increased capacity available for existing thin-provisioned volumes to grow into, as well as for provisioning new volumes.

Due to HP 3PAR's wide striping technology, performance benefits from newly added drives are integrated across the entire array, meaning existing volumes also gain improved performance, not just new ones.

Performance improvements from adding new drives are available to both existing and new volumes because the 3PAR system leverages all available resources, including new drives, for data distribution and I/O processing.

HP 3PAR's architecture uses wide striping to distribute data and I/O across all available drives; therefore, adding new disk drives contributes additional spindles and I/O pathways, enhancing performance for both existing volumes and any new volumes.

Adding disk drives increases the overall storage pool, which provides capacity for both the expansion of existing volumes and the creation of new volumes, not solely existing ones.

New drives contribute to the total available storage, offering capacity for existing volumes to expand into as needed, in addition to providing space for new volumes.