Abstract: Disclosed aspects relate to service interface topology management for a shared pool of configurable computing resources. A management engine may detect a first linkage error event for a first set of data traffic with respect to a first service interface cable which connects a first global service processor with a set of hardware devices. A second service interface cable which connects a second global service processor with the set of hardware devices may be sensed. Based on and in response to the first linkage error event for the first set of data traffic, the management engine may determine to access the set of hardware devices by utilizing the second service interface cable. The first set of data traffic may be routed to the set of hardware devices via the second service interface cable.

Abstract: Disclosed aspects relate to dynamic cable-linkage management for a shared pool of configurable computing resources having a set of cable-linkage topology data. A first connection between a first service processor and a plurality of compute nodes may be sensed by a first mapping engine which is coupled with a first service processor on a set of control nodes. A plurality of node identifiers may be established on the plurality of compute nodes by the first mapping engine. Based on the plurality of node identifiers and the set of cable-linkage topology data, a first device path map may be determined. A set of data traffic may be routed via the first connection between the first service processor and the plurality of compute nodes based on the first device path map.

Abstract: Data communication between nodes of a symmetric multiprocessing (SMP) computing system can be maintained during the replacement of a faulty cable used to interconnect the nodes. A data bus error caused by the faulty cable is detected, resulting in the activation of an alternative data path between the nodes, and the disabling of a data path through the faulty cable. A system notification indicating the faulty cable is issued, and in response to the nodes being interconnected with a replacement cable, the replacement cable is tested for reliability. After the replacement cable is determined to be reliable, a data path through the replacement cable is activated.

Abstract: An approach is provided for preventing access to mis=plugged devices by a service processor (SP). The SP retrieves an expected device identifier of a device associated with a hot-plug event. The hot-plug event was received in response to the device being connected to a selected port of a service processor, and the port is one many ports included in the SP. The SP sends a request for a device identifier via the port and actual device identifier is received from the device. The device is validated by comparing the expected device identifier with the actual device identifier. If the identifiers match, a link between the SP and the device is maintained. On the other hand, if the identifiers do not match, the link between the SP and the device is terminated or otherwise inhibited.

Abstract: Disclosed aspects relate to dynamic cable-linkage management for a shared pool of configurable computing resources having a set of cable-linkage topology data. A first connection between a first service processor and a plurality of compute nodes may be sensed by a first mapping engine which is coupled with a first service processor on a set of control nodes. A plurality of node identifiers may be established on the plurality of compute nodes by the first mapping engine. Based on the plurality of node identifiers and the set of cable-linkage topology data, a first device path map may be determined. A set of data traffic may be routed via the first connection between the first service processor and the plurality of compute nodes based on the first device path map.

Abstract: Disclosed aspects relate to service interface topology management for a shared pool of configurable computing resources. A management engine may detect a first linkage error event for a first set of data traffic with respect to a first service interface cable which connects a first global service processor with a set of hardware devices. A second service interface cable which connects a second global service processor with the set of hardware devices may be sensed. Based on and in response to the first linkage error event for the first set of data traffic, the management engine may determine to access the set of hardware devices by utilizing the second service interface cable. The first set of data traffic may be routed to the set of hardware devices via the second service interface cable.

Abstract: Data communication between nodes of a symmetric multiprocessing (SMP) computing system can be maintained during the replacement of a faulty cable used to interconnect the nodes. A data bus error caused by the faulty cable is detected, resulting in the activation of an alternative data path between the nodes, and the disabling of a data path through the faulty cable. A system notification indicating the faulty cable is issued, and in response to the nodes being interconnected with a replacement cable, the replacement cable is tested for reliability. After the replacement cable is determined to be reliable, a data path through the replacement cable is activated.

Abstract: An approach is provided for preventing access to mis=plugged devices by a service processor (SP). The SP retrieves an expected device identifier of a device associated with a hot-plug event. The hot-plug event was received in response to the device being connected to a selected port of a service processor, and the port is one many ports included in the SP. The SP sends a request for a device identifier via the port and actual device identifier is received from the device. The device is validated by comparing the expected device identifier with the actual device identifier. If the identifiers match, a link between the SP and the device is maintained. On the other hand, if the identifiers do not match, the link between the SP and the device is terminated or otherwise inhibited.