Apparatus, system, and method for autonomously maintaining a single system image in a parallel systems complex

Apparatus, system, and method for autonomously maintaining a single system image in a parallel systems complex

An apparatus, system, and method for autonomously maintaining a single system image in a parallel systems complex. A computer program product causes the relevant systems in a parallel systems complex to receive requests with a global scope from a user. The request is sent to each IMS system in the s...

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Hauptverfasser: Fontaine, Jeffrey G, Grover, Dean L, Ho, Claudia S, Patterson, Betty J, Ricchio, Francis J, Tse, Judy Y, Vakkalagadda, Anuradha V
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creator Fontaine, Jeffrey G
Grover, Dean L
Ho, Claudia S
Patterson, Betty J
Ricchio, Francis J
Tse, Judy Y
Vakkalagadda, Anuradha V
description An apparatus, system, and method for autonomously maintaining a single system image in a parallel systems complex. A computer program product causes the relevant systems in a parallel systems complex to receive requests with a global scope from a user. The request is sent to each IMS system in the sysplex, and each IMS system applies the resource information and logs the resource information for recovery. The request is written to a shared medium which IMS sysplex members can access. When an IMS member is brought online, the IMS member restores status information first from local recovery logs. The IMS member then checks the information against the global medium to determine if requests were issued while the IMS was offline. If so, the IMS inherits the information in the global medium before processing work. An IMS added into the sysplex applies the information from the global medium before processing work.
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title Apparatus, system, and method for autonomously maintaining a single system image in a parallel systems complex
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