- 专利标题: FROZEN TIME CACHE FOR MULTI-HOST READ OPERATIONS
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申请号: US17354168申请日: 2021-06-22
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公开(公告)号: US20220405206A1公开(公告)日: 2022-12-22
- 发明人: Adarsh Sreedhar , Ramanathan Muthiah
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA San Jose
- 主分类号: G06F12/0862
- IPC分类号: G06F12/0862 ; G06F3/06
摘要:
Aspects of a storage device including a memory and a controller are provided. The controller may receive a prefetch request to retrieve data for a host having a promoted stream. The controller may access a frozen time table indicating hosts for which data has been prefetched and frozen times associated with the host and other hosts. The controller can determine whether the host has a higher priority over other hosts included in the frozen time table based on corresponding frozen times and data access parameters associated with the host. The controller may determine to prefetch the data for the host in response to the prefetch request when the host has a higher priority than the other hosts. The controller can receive a host read command associated with the promoted stream from the host and provide the prefetched data to the host in response to the host read command.