Patent ID: 9229654
Filing Date: 2016-01-05
CPC Classification: G06F

Claim Text:
1. A storage system, comprising: a plurality of logical volumes; a host driver operable to process input/output requests to the logical volumes; and a plurality of Serial Attached Small Computer System Interface (SAS) storage controllers coupled between a server and the logical volumes and communicatively coupled to one another, wherein a first of the storage controllers is operable to receive a write input/output request from the host driver for one of the logical volumes via a Peripheral Component Interconnect Express (PCIE) bus, and transfer a command to a second of the storage controllers via the PCIE bus to retrieve data of the input/output request from the host driver; wherein the second storage controller processes the command from the first storage controller, retrieves the data of the input/output request from the host driver via the PCIE bus based on the command, and writes the retrieved data to a logical volume of the plurality of logical volumes.