Selecting master time of day for maximum redundancy
AssigneeInternational Business Machines Corporation
InventorsManish Kumar Chowdhary, Deepak Kodihalli
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Abstract
An approach is provided in which a system selects a first processor as a master Time of Day (TOD) processor in a first TOD topology. The system then assigns a second processor as an alternate master TOD processor to a second TOD topology based upon determining that the second processor is on a different node than the first processor. The system configures to the first TOD topology and, when the system detects a TOD failure requiring a topology switch, the system re-configures to the second TOD topology.
Claims7
A method implemented by an information handling system that includes a memory and a plurality of processors, the method comprising:
- identifying an amount of functioning cores within each of a plurality of processors;
- selecting a first one of the plurality of processors as a master time of day (TOD) processor in a master TOD topology based upon determining that the first processor has a largest amount of functioning cores out of the plurality of processors, wherein the first processor is located on a first node;
- assigning a second one of the plurality of processors as an alternate master TOD processor to a backup TOD topology based upon determining that the second processor is on a second node that is different than the first node;
- configuring the information handling system to the master TOD topology;
- and
- in response to detecting a TOD failure on the master TOD topology, re-configuring the information handling system to the backup TOD topology.
Dependencies are inferred from the claim text.