Processing of data to suspend operations in an input/output processing system
First Claim
1. A computer program product for processing communications between a target and an initiator in an input/output processing system, the communications between the target and the initiator via a channel path, and the computer program product comprising a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
- responsive to a communication determining that a selected protocol is supported by the initiator and the target, the selected protocol supporting suspension of input/output (I/O) operations, sending a logout message between the initiator and the target, the logout message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the logout message; and
responsive to the logout message, suspending input/output operation messages for the period of time.
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Abstract
A computer program product, an apparatus, and a method for processing communications between a target and an initiator an input/output processing system are provided. The computer program product includes a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method. The method includes: sending a message between the initiator and the target, the message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the message; and responsive to the message, suspending input/output operation messages for the period of time.
172 Citations
29 Claims
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1. A computer program product for processing communications between a target and an initiator in an input/output processing system, the communications between the target and the initiator via a channel path, and the computer program product comprising a tangible storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
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responsive to a communication determining that a selected protocol is supported by the initiator and the target, the selected protocol supporting suspension of input/output (I/O) operations, sending a logout message between the initiator and the target, the logout message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the logout message; and responsive to the logout message, suspending input/output operation messages for the period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for processing communications in an input/output processing system, the input/output processing system comprising an initiator and a target, the target capable of communication with the initiator via a channel path, the apparatus capable of performing a method comprising:
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responsive to a communication determining that a selected protocol is supported by the initiator and the target, the selected protocol supporting suspension of input/output (I/O) operations, sending a logout message between the initiator and the target, the logout message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the logout message; and responsive to the logout message, suspending input/output operation messages for the period of time. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of processing communications between an initiator and a target in an input/output processing system, the communications between the target and the initiator via a channel path, the method comprising:
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responsive to a communication determining that a selected protocol is supported by the initiator and the target, the selected protocol supporting suspension of input/output (I/O) operations, sending a logout message between the initiator and the target, the logout message requesting suspension of input/output operations between the initiator and the target for a period of time, the period of time being defined by the logout message; and responsive to the logout message, suspending input/output operation messages for the period of time. - View Dependent Claims (26, 27, 28, 29)
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Specification