DATA STORAGE DEVICE AND OPERATING METHOD THEREOF

摘要

A data storage device includes a plurality of memory apparatuses, a searching unit configured to search for “k” physical addresses mapped to “k” continuous logical addresses, and a processor configured to determine numerical consecutiveness of “i” logical addresses mapped to “i” continuous physical addresses consecutive to an Kth physical address of the “k” physical addresses, and transmit a first pre-read command with respect to a first pre-read memory area corresponding to the “i” continuous physical addresses and first read-estimated physical addresses consecutive to the “i” continuous physical addresses when the numerical consecutiveness is admitted.

主权项

1. A data storage device comprising:
a plurality of memory apparatuses; a searching unit suitable for searching for “k” number of physical addresses mapped to “k” number of numerically consecutive logical addresses in a mapping table; and a processor suitable for: determining whether “i” number of logical addresses are numerically consecutive to the “k” logical addresses, wherein the “i” logical addresses are mapped to “i” number of physical addresses that are numerically consecutive to the “k” physical addresses, and transmitting a first pre-read command along with first pre-read physical addresses for access to a first pre-read memory area when the “i” logical addresses are numerically consecutive to the “k” logical addresses, wherein the first pre-read physical addresses include the physical addresses and one or more first read-estimated physical “i” addresses that are numerically consecutive to the “i” physical addresses.