专利名称：Method and apparatus for decomposing I/O
tasks in a RAID system
发明人：Srinivasan Viswanathan,James Leong,Rajesh
Sundaram,Douglas P. Doucette,ScottSchoenthal,Stephen H. Strange
申请号：US12465179申请日：20090513公开号：US07926059B2公开日：20110412
专利附图：
摘要：A data access request to a file system is decomposed into a plurality of lower-
level I/O tasks. A logical combination of physical storage components is represented as ahierarchical set of objects. A parent I/O task is generated from a first object in responseto the data access request. A child I/O task is generated from a second object toimplement a portion of the parent I/O task. The parent I/O task is suspended until thechild I/O task completes. The child I/O task is executed in response to an occurrence ofan event that a resource required by the child I/O task is available. The parent I/O task isresumed upon an event indicating completion of the child I/O task. Scheduling of anychild I/O task is not conditional on execution of the parent I/O task, and a state diagramregulates the child I/O tasks.
申请人：Srinivasan Viswanathan,James Leong,Rajesh Sundaram,Douglas P.Doucette,Scott Schoenthal,Stephen H. Strange
地址：Fremont CA US,Hillsborough CA US,Mountain View CA US,Freeland WA US,SanRamon CA US,Mountain View CA US
国籍：US,US,US,US,US,US
代理机构：Cesari and McKenna, LLP
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