System and method for efficiently guaranteeing data consistency to clients of a storage system cluster
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United States of America Patent
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May 18, 2010
Grant Date -
N/A
app pub date -
Mar 14, 2008
filing date -
Dec 2, 2003
priority date (Note) -
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Abstract
A method for operating a computer storage system is disclosed. One or more data storage devices are configured to store a data content of a data container. A data structure having a plurality of permitted modification times (mtimes) is generated, the mtimes to control modifying a data stored in the data container. An I/O operation is performed by the storage system in response to a selected mtime. A request for the I/O operation is received from a client, and the data structure having a plurality of permitted modification times (mtimes) is generated in response to the request. The selected mtime is transmitted to the client, and an I/O operation is requested by the client in response to the selected mtime. The I/O operation is performed as an atomic I/O operation.
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