发明名称 |
Computer program product for continuous destaging of changed data from a shared cache in a multisystem shared disk environment wherein castout interest is established in a hierarchical fashion |
摘要 |
A computer program product for a system and method for destaging changed data from a shared cache castout in a shared data environment distributes castout ownership for a dataset among a plurality of systems having an update interest in the dataset. One system is designated as having castout ownership of the dataset in a primary state. All other systems having an update interest in the dataset hold castout ownership for the dataset in a backup state. When the primary owner relinquishes ownership, primary ownership is passed to one of the backup systems. A structure castout owner for the entire cache assumes the responsibility of castout out changed data for a dataset for which the primary castout owner has had a failure.
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申请公布号 |
US5751992(A) |
申请公布日期 |
1998.05.12 |
申请号 |
US19950454846 |
申请日期 |
1995.05.31 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BHARGAVA, GAUTAM;NARANG, INDERPAL SINGH;TENG, JAMES Z. |
分类号 |
G06F12/08;(IPC1-7):G06F12/02 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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