Invention Grant
- Patent Title: Maintaining ordering via a multi-level map of a solid-state media
- Patent Title (中): 通过固态介质的多级地图维护排序
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Application No.: US14022781Application Date: 2013-09-10
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Publication No.: US09218281B2Publication Date: 2015-12-22
- Inventor: Earl T. Cohen , Leonid Baryudin
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Main IPC: G06F12/02
- IPC: G06F12/02

Abstract:
Described embodiments provide a media controller that processes requests including a logical address and address range. A map of the media controller determines physical addresses of a media associated with the logical address and address range of the request. The map is a multi-level map having a plurality of leaf-level map pages that are stored in the media, with a subset of the leaf-level map pages stored in a map cache. Based on the logical address and address range, it is determined whether a corresponding leaf-level map page is stored in the map cache. If the leaf-level map page is stored in the map cache, a cache index and control indicators of the map cache entry are returned in order to enforce ordering rules that selectively enable access to a corresponding leaf-level map page based on the control indicators and a determined request type.
Public/Granted literature
- US20140047170A1 MAINTAINING ORDERING VIA A MULTI-LEVEL MAP OF A SOLID-STATE MEDIA Public/Granted day:2014-02-13
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