Data processing lock signal transmission
AssigneeInternational Business Machines Corporation
InventorsYolanda Colpo, John C. Elliott, Enrique Q. Garcia, Larry Juarez, Todd C. Sorenson
Life of this patent
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Abstract
In accordance with one aspect of the present description, a node of the distributed computing system has multiple communication paths to a data processing resource lock which controls access to shared resources, for example. In this manner, at least one redundant communication path is provided between a node and a data processing resource lock to facilitate reliable transmission of data processing resource lock signals between the node and the data processing resource lock. Other features and aspects may be realized, depending upon the particular application.
Claims19
A computer implemented method, comprising:
- under control of a first server node of a distributed computer storage system,
- transmitting over a first communication path to a failover lock device, a first request to be granted a failover lock of the failover lock device;
- and
- transmitting over a second communication path to the failover lock device, a second request to be granted the failover lock of the failover lock device.
A computer program product for a distributed computing system having a plurality of processor nodes including a first data processing unit, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein for execution by a processor of the first data processing unit to perform operations, the operations comprising:
- under control of the first data processing unit,
- transmitting by the first data processing unit over a first communication path to a failover lock device, a first request to be granted a failover lock, and
- transmitting by said first data processing unit over a second communication path to the failover lock device, a second request to be granted the failover lock.
A distributed computing storage controller system for use with a plurality of hosts and a plurality of storage devices, comprising:
- a plurality of processor nodes including a first data processing unit having a processor, said processor nodes for transferring data between the plurality of hosts and the plurality of storage devices;
- a memory having a plurality of units of shared data;
- a plurality of shared resources;
- a failover lock device providing a failover lock for controlling access by said plurality of nodes to at least one of said units of shared data and said shared resources;
- first and second communication paths coupling said first data processing unit to said failover lock device;
- and
- a computer readable storage medium having computer readable program code embodied therein for execution by the processor of the first data processing unit to perform operations, the operations comprising:
- under control of the first data processing unit,
- transmitting by the first data processing unit over the first communication path to the failover lock device, a first request to be granted the failover lock,
- transmitting by said first data processing unit over the second communication path to the failover lock device, a second request to be granted the failover lock.
Dependencies are inferred from the claim text.