Method and system for data replication
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United States of America Patent
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Sep 29, 2009
Grant Date -
May 31, 2007
app pub date -
May 15, 2006
filing date -
Nov 4, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for writing data to a storage pool includes receiving a write operation to write a logical block of data to the storage pool, determining a number (n−1) of physical blocks required to store the logical block of data, generating a parity block using the logical block of data, allocating n physical blocks in the storage pool, writing the parity block in the first of n allocated physical block, and writing the logical block of data across the remaining n−1 allocated physical blocks, where n is less than a number of disks in the storage pool, and where each of the n allocated physical blocks is located on a different disk in the storage pool.
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