Patent · US Active

Multiple indirection sizes for logical-to-physical translation tables

US11874771B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Western Digital Technologies, Inc. · US

Inventors

Arvind Kumar V M · Survanagiri, IN
Ravishankar Surianarayanan · Kanchinakote, IN

Key dates

Filing date	May 16, 2022
Grant date	Jan 16, 2024
Priority date	—
Expiry date	Jul 1, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/7201
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Multiple logical-to-physical translation tables (L2PTTs) for data storage devices having indirection units of different sizes. In one embodiment, a data storage controller includes a memory interface configured to interface with a memory, the memory including a zoned namespace, the zoned namespace including a plurality of zones. The data storage controller includes a controller memory including two or more logical-to-physical translation tables (L2PTTs), and an electronic processor. The electronic processor is configured to receive data to be stored in a zone of the plurality of zones, determine whether the zone is an active zone, select, in response to determining that the zone is the active zone, a first L2PTT having a first indirection unit size, and select, in response to determining that the zone is not the active zone, a second L2PTT having a second indirection unit size.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.