Monitoring processing modes of coupling facility structures
AssigneeInternational Business Machines Corporation
InventorsRuth A. Allen, Michael J. Jordan, Catherine M. Moxey
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Abstract
System-managed duplexing of coupling facility structures. A plurality of instances of coupling facility structures are maintained in a plurality of coupling facilities. Duplexing processing associated with the plurality of instances is managed by one or more operating systems, making many of the steps associated with duplexing transparent to the exploiters of the coupling facility structures. System-managed duplexing provides high availability for coupling facility structure data via a robust recovery mechanism (i.e., duplexing failover).
Claims40
A method of monitoring processing modes of coupling facility structures, said method comprising:
- determining whether a coupling facility structure processing in simplex mode is to be processed in duplex mode;
- and
- automatically initiating duplexing of the coupling facility structure, in response to the determining indicating that the coupling facility structure is to be processed in duplex mode.
A system of monitoring processing modes of coupling facility structures, said system comprising:
- means for determining whether a coupling facility structure processing in simplex mode is to be processed in duplex mode;
- and
- means for automatically initiating duplexing of the coupling facility structure, in response to the determining indicating that the coupling facility structure is to be processed in duplex mode.
A system of monitoring processing modes of coupling facility structures, said system comprising:
- at least one operating system to determine whether a coupling facility structure processing in simplex mode is to be processed in duplex mode;
- and
- at least one operating system to automatically initiate duplexing of the coupling facility structure, in response to the determining indicating that the coupling facility structure is to be processed in the duplex mode.
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 monitoring processing modes of coupling facility structures, said method comprising:
- determining whether a coupling facility structure processing in simplex mode is to be processed in duplex mode;
- and
- automatically initiating duplexing of the coupling facility structure, in response to the determining indicating that the coupling facility structure is to be processed in duplex mode.
Dependencies are inferred from the claim text.