Storage device and stream filtering method thereof

摘要

A storage device may include a main storage part including memories; and a controller configured to control an overall operation of the main storage part. The controller includes a filter manager configured to store data format information and a filtering condition provided from a host; stream filters configured to search and project data stored in the memories in parallel in response to a control of the filter manager to produce searched and projected data; and a merge filter configured to merge the searched and projected data of the stream filters in response to the control of the filter manager.

主权项

1. A data processing method of a storage device including a host interface to interface with an external host, a plurality of non-volatile memories connected to a plurality of channels, and a controller connected between the host interface and the plurality of non-volatile memories and to control read, write, and erase operations of the plurality of non-volatile memories, the method comprising:
receiving filtering information from the external host; and performing a stream filtering operation on data by the controller of the storage device based on the filtering information, the filtering information including a filtering condition regarding the data, wherein: the data includes a plurality of data streams transferred from the plurality of non-volatile memories to the controller of the storage device, and the streaming filtering operation is at least partially executed by the controller of the storage device instead of the external host such that an operation of transferring data from the plurality of non-volatile memories to the external host is reduced or skipped.