Invention Grant
US09122586B2 Physical-to-logical address map to speed up a recycle operation in a solid state drive
有权
物理到逻辑地址映射,以加速在固态驱动器中的回收操作
- Patent Title: Physical-to-logical address map to speed up a recycle operation in a solid state drive
- Patent Title (中): 物理到逻辑地址映射,以加速在固态驱动器中的回收操作
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Application No.: US13780229Application Date: 2013-02-28
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Publication No.: US09122586B2Publication Date: 2015-09-01
- Inventor: Li Zhao Ma , Zhi Min Dong , Rong Yuan , Ning Wang , Xing Rong
- Applicant: Seagate Technology
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Christopher P. Maiorana, PC
- Priority: CN201310050270 20130206
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/02

Abstract:
A method for increasing performance of a recycle operation in a solid state drive, comprising the steps of (A) creating an empty physical-to-logical address map in a memory having a plurality of entry locations, (B) filling one of the plurality of entry locations with a physical page address associated with each data write operation to a block, where the block has a plurality of pages, (C) writing the physical-to-logical address map to a last of the plurality of pages during a write to a second to last page of the block and (D) initiating a recycle operation of the block by reading the address map to determine whether the pages contain valid data.
Public/Granted literature
- US20140223075A1 PHYSICAL-TO-LOGICAL ADDRESS MAP TO SPEED UP A RECYCLE OPERATION IN A SOLID STATE DRIVE Public/Granted day:2014-08-07
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