| 摘要 |
<p>A storage system comprises multiple memory packages and a storage controller. The multiple memory packages respectively comprise multiple nonvolatile semiconductor memory devices for storing data, and a memory controller for controlling the reading/writing of data from/to these multiple semiconductor memory devices, and the storage controller receives an I/O command issued from a host computer, creates, on the basis of the received I/O command, a first level command for controlling the multiple memory packages, and sends this first level command to the multiple memory packages. The memory controllers of the multiple memory packages, based on the received first level command, respectively create a second level command for the multiple nonvolatile semiconductor memory devices inside its own memory package, and estimate the power to be consumed in its own memory package when the created second level command is executed. Then, in a case where the estimated power consumption exceeds a preconfigured permissible power, suspends the execution of the received second level command.</p> |
