Patent ID: 7003700

Claim:
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.