STORAGE DEVICE, AND READ COMMAND EXECUTING METHOD

摘要

A storage device of the embodiment includes memory, a control section, a table holding section for managing a table for holding an identifier, a logical address, and a data length based on a read command, an issuing section for issuing the logical address and the data length for each identifier to the control section, a buffer for holding data received from the memory along with the identifier, and an identifier queue for receiving the identifier of a number proportional to a data length when the data of the logical address of the same identifier is received in the buffer. The storage device of the embodiment includes a transfer section for transferring the data corresponding to the identifier received in the buffer to outside when the identifier is held as incomplete readout in the table in order from the identifier at a head of the identifier queue.

主权项

1. A storage device: comprising
non-volatile memory; a memory control section; a table holding section configured to manage a table holding an identifier, with which a read command is identifiable, a logical address of readout data corresponding to the identifier, and readout data length corresponding to the identifier based on the read command; a read issuing section configured to issue the logical address and the data length for each identifier to the memory control section; a read buffer configured to hold data received from the non-volatile memory based on a physical address corresponding to the logical address and the data length for each identifier instructed from the memory control section along with the identifier; an identifier queue configured to receive the identifier of a number proportional to a data length of the data when the data of the logical address is received for the same identifier in the read buffer; and a transfer section configured to transfer the data corresponding to the identifier received in the read buffer to outside when the identifier is held as incomplete readout in the table in order from the identifier at a head of the identifier queue.