Halting execution of duplexed commands
First Claim
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1. A method of halting execution of duplexed commands executing within a computing environment, said method comprising:
- detecting a resource condition by one instance of a duplexed command, said duplexed command comprising said one instance and another instance, wherein the one instance of the duplexed command is executing within one coupling facility of the computing environment and the another instance of the duplexed command is executing within another coupling facility of the computing environment, and wherein the one coupling facility and the another coupling facility have differing resource constraints; and
halting execution of the another instance of the duplexed command executing within the another coupling facility, in response to the detecting, wherein the halting halts execution of the another instance of the duplexed command to which the halt is directed independent of one or more other commands which continue to execute within the another coupling facility and independent of input/output operations which continue.
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Abstract
A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility may include duplexed structures, as well as non-duplexed or simplexed structures.
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Citations
31 Claims
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1. A method of halting execution of duplexed commands executing within a computing environment, said method comprising:
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detecting a resource condition by one instance of a duplexed command, said duplexed command comprising said one instance and another instance, wherein the one instance of the duplexed command is executing within one coupling facility of the computing environment and the another instance of the duplexed command is executing within another coupling facility of the computing environment, and wherein the one coupling facility and the another coupling facility have differing resource constraints; and halting execution of the another instance of the duplexed command executing within the another coupling facility, in response to the detecting, wherein the halting halts execution of the another instance of the duplexed command to which the halt is directed independent of one or more other commands which continue to execute within the another coupling facility and independent of input/output operations which continue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system of halting execution of duplexed commands executing within a computing environment, said system comprising:
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means for detecting a resource condition by one instance of a duplexed command, said duplexed command comprising said one instance and another instance, wherein the one instance of the duplexed command is executing within one coupling facility of the computing environment and the another instance of the duplexed command is executing within another coupling facility of the computing environment, and wherein the one coupling facility and the another coupling facility have differing resource constraints; and means for halting execution of the another instance of the duplexed command executing within the another coupling facility, in response to the detecting, wherein the halting halts execution of the another instance of the duplexed command to which the halt is directed independent of one or more other commands which continue to execute within the another coupling facility and independent of input/output operations which continue. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system of halting execution of duplexed commands executing within a computing environment, said system comprising:
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a resource condition detected by one instance of a duplexed command, said duplexed command comprising said one instance and another instance; a coupling facility of the computing environment to execute the one instance of the duplexed command; and another coupling facility of the computing environment to execute the another instance of the duplexed command, and to facilitate halting execution of the another instance of the duplexed command executing within the another coupling facility, in response to the detecting, wherein the halting halts execution of the another instance of the duplexed command to which the halt is directed independent of one or more other commands which continue to execute within the another coupling facility and independent of input/output operations which continue, and wherein the coupling facility and the another coupling facility have differing resource constraints.
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22. 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 halting execution of duplexed commands executing within a computing environment, said method comprising:
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detecting a resource condition by one instance of a duplexed command, said duplexed command comprising said one instance and another instance, wherein the one instance of the duplexed command is executing within one coupling facility of the computing environment and the another instance of the duplexed command is executing within another coupling facility of the computing environment, and wherein the one coupling facility and the another coupling facility have differing resource constraints; and halting execution of the another instance of the duplexed command executing within the another coupling facility, in response to the detecting, wherein the halting halts execution of the another instance of the duplexed command to which the halt is directed independent of one or more other commands which continue to execute within the another coupling facility and independent of input/output operations which continue. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification