Avago Technologies General IP (Singapore) Pte. Ltd.

Subhankar Mukherjee

Gerald Edward Smith

Naveen Krishnamurthy

Anuj Kumar Jain

Jianning Wang

Daniel Gnanaraj Samuelraj

David Moon

Methods and structure are provided for defining span sizes for Redundant Array of Independent Disks (RAID) systems. One embodiment is a RAID controller that includes a control system and a span manager. The control system is able to identify storage devices coupled with the controller and is able to receive input requesting the creation of a RAID logical volume. The span manager is able to define multiple RAID spans to implement the volume, each span comprising one or more of the coupled storage devices, at least one of the spans including a different number of drives than at least one other span.

Redundant array of independent disks systems that utilize spans with different storage device counts for a logical volume

Methods and structure for automatic creation of Redundant Array of Independent Disks (RAID) volumes are provided. The system comprises A RAID controller that includes a memory and a processor. The memory stores information describing storage devices of a storage system. The processor is able to receive a request to generate a RAID volume, to access the memory to identify a first group of storage devices that each have a first storage capacity, and to determine an expected size of a volume implemented by the first group. The processor is further able to access the memory to identify a second group of storage devices that each have a second storage capacity, to determine an expected size of a volume implemented by the first group and the second group, and to select one or more of the groups to create the requested volume based on the expected sizes.

Redundant array of independent disks volume creation

Growing community of inventors

Suwanee, GA, United States of America

Subhankar Mukherjee