Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2011-04-12
2011-04-12
Wu, Qing (Department: 2196)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
C711S100000, C711S114000
Reexamination Certificate
active
07926059
ABSTRACT:
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 a hierarchical set of objects. A parent I/O task is generated from a first object in response to the data access request. A child I/O task is generated from a second object to implement a portion of the parent I/O task. The parent I/O task is suspended until the child I/O task completes. The child I/O task is executed in response to an occurrence of an event that a resource required by the child I/O task is available. The parent I/O task is resumed upon an event indicating completion of the child I/O task. Scheduling of any child I/O task is not conditional on execution of the parent I/O task, and a state diagram regulates the child I/O tasks.
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Doucette Douglas P.
Leong James
Schoenthal Scott
Strange Stephen H.
Sundaram Rajesh
Cesari and McKenna LLP
NetApp, Inc.
Wu Qing
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