US 2024/0201859 A1 · Stream Data Management in Storage Device

Abstract

A controller of a storage device receives a stream of data from a host system. The stream of data corresponds to logical block addresses. The controller writes the stream of data to data block(s) in a device memory, each data block including respective super word line(s), each super word line including respective word line(s), and each word line corresponding to at least one logical block address. The controller generates a table for storing the logical block addresses in the order of data arrival. In response to receiving an update to one or more logical block addresses of the data block(s), the controller defragments at least one data block, based on the one or more logical block addresses, and writes data for one or more super word lines of the at least one data block to a new data block, based on the table, to retain the order.

Claims20

Dependent claims

A data storage device, comprising:

a host interface for coupling the data storage device to a host system;
a device memory;
and
a controller configured to:
receive a stream of data from the host system via the host interface, wherein the stream of data corresponds to a plurality of logical block addresses;
write the stream of data to one or more data blocks in the device memory, each data block comprising a respective plurality of super word lines, each super word line comprising a respective plurality of word lines, each word line corresponding to at least one logical block address;
generate a table for storing the plurality of logical block addresses;
receive an update to one or more logical block addresses of the one or more data blocks;
and
in response to receiving the update:
defragment at least one data block of the one or more data blocks, based on the one or more logical block addresses;
and
write data for one or more super word lines of the at least one data block to a new data block in the device memory, based on the table.

10 more elements

A method implemented using one or more controllers for one or more data storage devices, the method comprising:

receiving a stream of data from a host system via a host interface, wherein the stream of data corresponds to a plurality of logical block addresses;
writing the stream of data to one or more data blocks in a device memory, each data block comprising a respective plurality of super word lines, each super word line comprising a respective plurality of word lines, each word line corresponding to at least one logical block address;
generating a table for storing the plurality of logical block addresses;
receiving an update to one or more logical block addresses of the one or more data blocks;
and
in response to receiving the update:
defragmenting at least one data block of the one or more data blocks, based on the one or more logical block addresses;
and
writing data for one or more super word lines of the at least one data block to a new data block in the device memory, based on the table.

6 more elements

Dependencies are inferred from the claim text.

Stream Data Management in Storage Device

Life of this patent

Stream Data Management in Storage Device

Life of this patent

Abstract

Claims20