Increase the size of an existing logical drive using unallocated space on an array.
Create, delete, and modify RAID arrays and logical drives directly within the Windows OS without requiring a reboot. Hp Acu Windows 2012
Assign and manage hot spare drives for automatic data recovery in the event of a disk failure. Diagnostic and Operation Modes HP Array Configuration Utility User Guide Increase the size of an existing logical drive
Change the RAID level of a logical drive (e.g., migrating from RAID 1 to RAID 5) to balance performance and redundancy. Key Management Features
The is a web-based and command-line tool used to configure and manage HP Smart Array controllers on Windows Server 2012.
On modern servers (Gen8 and later), the ACU has been officially replaced by the HP Smart Storage Administrator (SSA) , which offers a similar interface with updated design and feature sets. Key Management Features