Invention Grant
- Patent Title: Deferred volume metadata invalidation
- Patent Title (中): 延迟卷元数据无效
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Application No.: US12361009Application Date: 2009-01-28
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Publication No.: US07930588B2Publication Date: 2011-04-19
- Inventor: Lawrence Carter Blount , Lokesh Mohan Gupta , Carol Santich Melgren , Kenneth Wayne Todd
- Applicant: Lawrence Carter Blount , Lokesh Mohan Gupta , Carol Santich Melgren , Kenneth Wayne Todd
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A method, system, and computer program product for managing modified metadata in a storage controller cache pursuant to a recovery action by a processor in communication with a memory device is provided. A count of modified metadata tracks for a storage rank is compared against a predetermined criterion. If the predetermined criterion is met, a storage volume having the storage rank is designated with a metadata invalidation flag to defer metadata invalidation of the modified metadata tracks until after the recovery action is performed.
Public/Granted literature
- US20100191925A1 DEFERRED VOLUME METADATA INVALIDATION Public/Granted day:2010-07-29
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