Method and system for priority-based allocation in a storage pool
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United States of America Patent
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Sep 1, 2009
Grant Date -
May 1, 2008
app pub date -
Oct 31, 2006
filing date -
Oct 31, 2006
priority date (Note) -
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Abstract
A method for priority-based allocation in a storage pool involves receiving a request to write a data item in the storage pool, where the storage pool includes multiple metaslabs, and where each of the metaslabs includes a contiguous region of data. The method further involves determining a target metaslab selected from the multiple metaslabs by comparing multiple allocation priorities, where each of the allocation priorities is associated with one of the metaslabs, allocating a block to the target metaslab, and writing the block to the target metaslab, where the block includes a portion of the data item.
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