Invention Grant
- Patent Title: Performing asynchronous discard scans with staging and destaging operations
- Patent Title (中): 使用分段和分段操作执行异步丢弃扫描
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Application No.: US14955889Application Date: 2015-12-01
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Publication No.: US09335930B2Publication Date: 2016-05-10
- Inventor: Michael T. Benhase , Lokesh M. Gupta , Matthew J. Kalos
- 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: Konrad Raynes Davda & Victor LLP
- Agent Rabindranath Dutta
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F3/06
Abstract:
A controller receives a request to perform staging or destaging operations with respect to an area of a cache. A determination is made as to whether one or more discard scans are being performed or queued for the area of the cache. In response to determining that one or more discard scans are being performed or queued for the area of the cache, the controller avoids satisfying the request to perform the staging or the destaging operations or a read hit with respect to the area of the cache.
Public/Granted literature
- US20160085454A1 PERFORMING ASYNCHRONOUS DISCARD SCANS WITH STAGING AND DESTAGING OPERATIONS Public/Granted day:2016-03-24
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