Method, system and program products for determining whether I/O constraints exist for controllers of a computing environment
First Claim
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1. A method of determining whether I/O constraints exist for controllers of a computing environment, said method comprising:
- determining an I/O velocity for a controller of said computing environment, wherein said determining comprises employing a relationship between an amount of time waiting to use one or more resources of the controller and an amount of time using the one or more resources to determine the I/O velocity; and
using said I/O velocity to determine whether an I/O constraint exists for said controller.
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Abstract
A determination is made as to whether input/output constraints exist for controllers (e.g., control units) of a computing environment. To facilitate this determination, an I/O velocity is calculated. The I/O velocity represents a relationship between an amount of time waiting to use one or more resources of the controller and an amount of time using the one or more resources.
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Citations
43 Claims
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1. A method of determining whether I/O constraints exist for controllers of a computing environment, said method comprising:
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determining an I/O velocity for a controller of said computing environment, wherein said determining comprises employing a relationship between an amount of time waiting to use one or more resources of the controller and an amount of time using the one or more resources to determine the I/O velocity; and using said I/O velocity to determine whether an I/O constraint exists for said controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system of determining whether I/O constraints exist for controllers of a computing environment, said system comprising:
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means for determining an I/O velocity for a controller of said computing environment, wherein said means for determining comprises means for employing a relationship between an amount of time waiting to use one or more resources of the controller and an amount of time using the one or more resources to determine the I/O velocity; and means for using said I/O velocity to determine whether an I/O constraint exists for said controller. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A system of determining whether I/O constraints exist for controllers of a computing environment, said system comprising:
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a first processor to determine an I/O velocity for a controller of said computing environment; a second processor to use said I/O velocity to determine whether an I/O constraint exists for said controller; and wherein the first processor and the second processor are different processors.
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30. At least one program storage device readable by a machine, tangibly embodying at least one program of instructions executable by the machine to perform a method of determining whether I/O constraints exist for controllers of a computing environment, said method comprising:
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determining an I/O velocity for a controller of said computing environment, wherein said determining comprises employing a relationship between an amount of time waiting to use one or more resources of the controller and an amount of time using the one or more resources to determine the I/O velocity; and using said I/O velocity to determine whether an I/O constraint exists for said controller. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification