Mass Parallelism

Each logical volume in the system is divided into multiple stripes of one megabyte. These stripes are spread over all the disks in the system, using a sophisticated pseudo-random distribution mechanism.

The XIV system's revolutionary approach ensures that all disks and modules are used equally, regardless of access patterns. The system keeps the load perfectly balanced, even if certain applications access certain volumes, or certain parts within a volume, more frequently.

The pseudo-random distribution ensures consistent load-balancing, even after volumes are added, deleted or resized, or hardware is added or removed.