Invention Grant
- Patent Title: Regrouping data during relocation to facilitate write amplification reduction
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Application No.: US15047901Application Date: 2016-02-19
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Publication No.: US10884914B2Publication Date: 2021-01-05
- Inventor: Razik S. Ahmed , Charles J. Camp , Timothy J. Fisher , Aaron D. Fry , Nikolas Ioannou , Jason Ma , Matthew R. Orr , Roman A. Pletka , Lincoln T. Simmons , Sasa Tomic
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Stosch Sabo
- Agent Brian F. Russell
- Main IPC: G06F12/02
- IPC: G06F12/02 ; G06F11/10 ; G06F3/06 ; G06F12/14
Abstract:
A technique for garbage collection in a storage system includes generating regrouping metadata for one or more pages of at least two logical erase blocks (LEB). The regrouping metadata indicates an associated stream for each of the pages. Multiple of the LEBs that include valid pages associated with a first stream are selected, based on the regrouping metadata, for regrouping. The valid pages associated with the first stream from the selected LEBs are regrouped into a new LEB.
Public/Granted literature
- US20170242788A1 REGROUPING DATA DURING RELOCATION TO FACILITATE WRITE AMPLIFICATION REDUCTION Public/Granted day:2017-08-24
Information query
