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.

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.

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.

Abstract: Provided are a computer program product, system, and method for embedding and executing trace functions in code to gather trace data. A plurality of trace functions are embedded in the code. For each embedded trace function, a trace level is included indicating code to which the trace applies. The trace level comprises one of a plurality of levels. During the execution of the code, the embedded trace functions having one of the levels associated with a specified at least one level specified are executed. The embedded trace functions associated with at least one level not comprising one of the at least one specified level are not invoked.

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.

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.

Abstract: A rack-power control module (RPC) module is used for allowing a local storage partition, located on a local server, for controlling a destination storage partition, located on a destination server, by piggybacking commands on power alerts issued by the RPC module in a clustered storage system. The commands are sent from the local storage partition to the RPC module, where the commands are RPC commands and include a destination server identification (ID) and payload data that includes a hypervisor command containing a command type, a subtype, and a destination ID. The RPC module then parses the commands received from the local storage partition.

Abstract: Provided are a computer program product, system, and method for embedding and executing trace functions in code to gather trace data. A plurality of trace functions are embedded in the code. For each embedded trace function, a trace level is included indicating code to which the trace applies. The trace level comprises one of a plurality of levels. During the execution of the code, the embedded trace functions having one of the levels associated with a specified at least one level specified are executed. The embedded trace functions associated with at least one level not comprising one of the at least one specified level are not invoked.

Abstract: A rack-power control module (RPC) module is used for allowing a local storage partition, located on a local server, for controlling a destination storage partition, located on a destination server, by piggybacking commands on power alerts issued by the RPC module in a clustered storage system. The commands are sent from the local storage partition to the RPC module, where the commands are RPC commands and include a destination server identification (ID) and payload data that includes a hypervisor command containing a command type, a subtype, and a destination ID. The RPC module then parses the commands received from the local storage partition.

Abstract: Provided are a computer program product, system, and method for embedding and executing trace functions in code to gather trace data. A plurality of trace functions are embedded in the code. For each embedded trace function, a trace level is included indicating code to which the trace applies. The trace level comprises one of a plurality of levels. During the execution of the code, the embedded trace functions having one of the levels associated with a specified at least one level specified are executed. The embedded trace functions associated with at least one level not comprising one of the at least one specified level are not invoked.

Abstract: A rack-power control module (RPC) module is used for allowing a local storage partition, located on a local server, for controlling a destination storage partition, located on a destination server, by piggybacking commands on power alerts issued by the RPC module in a clustered storage system.

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.

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.

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.

Abstract: Provided are a computer program product, system, and method for embedding and executing trace functions in code to gather trace data. A plurality of trace functions are embedded in the code. For each embedded trace function, a trace level is included indicating code to which the trace applies. The trace level comprises one of a plurality of levels. During the execution of the code, the embedded trace functions having one of the levels associated with a specified at least one level specified are executed. The embedded trace functions associated with at least one level not comprising one of the at least one specified level are not invoked.

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.

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.

Abstract: A rack-power control module (RPC) module is used for allowing a local storage partition, located on a local server, for controlling a destination storage partition, located on a destination server, by piggybacking commands on power alerts issued by the RPC module in a clustered storage system.

Abstract: An apparatus, system, and method are disclosed for dual master LED (Light Emitting Diode) control. Two hosts are connected to and redundantly control the operation of an LED. Communication modules coupled to the two hosts facilitate communication between the two hosts without affecting the normal operation of the LED. This is done by sending pulses between the two hosts such that the hosts can be synchronized as well as communicate information to one another across the LED channel. The pulses have a small width such that any affect on the LED is imperceptible to humans.

Abstract: A method for reducing collisions within a plurality of networks, each of the plurality of networks having a plurality of workstations physically communicating over a plurality of shared communication channels, the method comprising: determining if a communication channel is available for transmitting data between the plurality of workstations; transmitting the data between all or part of the plurality of workstations via the communication channel; controlling the transmitted data between the plurality of workstations via a controller; monitoring the transmitted data by using a logic circuit; generating reverse polling of shared resources to reduce the collisions from occurring upon transmitting the data over the communication channel when a determination is made that at least two workstations of the plurality of workstations attempt to access a same shared resource within the plurality of networks; and notifying the controller of the reverse polling of the transmitted data and performing a low frequency time