Abstract: Methods, computing systems and computer program products implement embodiments of the present invention that include detecting, on a communications network in a computing facility including a first computer coupled to a second computer via the communications network, an input/output (I/O) request conveyed from the first computer to the second computer. Subsequent to detecting the I/O request, data traffic resulting from the second computer processing the I/O request is identified on the communications network, and network statistics are collected based on the I/O request and the data traffic. Upon detecting a performance degradation of the computing facility, the performance degradation greater than a predetermined amount, heuristics can be applied to the collected network statistics, to identify a cause of the performance degradation and to identify a remedy to the detected performance degradation. In some embodiments, the identified cause and the identified remedy can be presented to a user on a display.

Abstract: Various embodiments for efficient data transfer in a Remote Direct Memory Access (RDMA) operation by a memory device. A file protocol header of the data is replaced with a block protocol header. The block protocol header enables transfer over a direct data path through a transport layer from a source to a target without outside manipulation by a central processing unit (CPU).

Abstract: Methods, systems, and computer program product embodiments for controlling congestion in a storage grid, by a processor device, are provided. In a storage grid, a storage request transmit queue length of storage requests submitted by a plurality of nodes is monitored, the storage request transmit queue comprising a queue holding the storage requests unable to be transmitted through a current transmission control protocol/internet protocol (TCP/IP) socket buffer of the storage grid. Upon reaching at least one of a certain threshold, a watermarked message indicating a specific one of the plurality of nodes is congested is transmitted to upper layer grid nodes in a hierarchy of the plurality of nodes transmitting the storage requests, and the upper layer grid nodes each alter the storage requests based upon the watermarked message.

Abstract: Methods, systems, and computer storage mediums including a computer program product for managing data in a computing network are provided. One method includes registering a plurality of buffers with a work queue in a server and assigning ownership to each of the plurality of buffers to a different working thread in a plurality of working threads. The method further includes continuously polling, by a polling thread, the work queue to determine when work requests are received by the work queue, upon receipt of each work request, and performing each work request on each respective associated buffer by a working thread among the plurality of working threads that owns each respective associated buffer. One system includes a processor for performing the above method and one computer storage medium includes computer code for performing the above method.

Abstract: Various embodiments for multipath management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises continuously monitoring and comparing current data path devices against the current storage structure, and changing routing decision configurations when it is detected there is a more efficient data path.

Abstract: Methods, systems, and computer storage mediums including a computer program product for managing data in a computing network are provided. One method includes registering a plurality of buffers with a work queue in a server and assigning ownership to each of the plurality of buffers to a different working thread in a plurality of working threads. The method further includes continuously polling, by a polling thread, the work queue to determine when work requests are received by the work queue, upon receipt of each work request, and performing each work request on each respective associated buffer by a working thread among the plurality of working threads that owns each respective associated buffer. One system includes a processor for performing the above method and one computer storage medium includes computer code for performing the above method.

Abstract: Methods, systems, and computer storage mediums including a computer program product for managing data in a computing network are provided. One method includes registering a plurality of buffers with a work queue in a server and assigning ownership to each of the plurality of buffers to a different working thread in a plurality of working threads. The method further includes continuously polling, by a polling thread, the work queue to determine when work requests are received by the work queue, upon receipt of each work request, determining which buffer among the plurality of buffers each work request is associated, and performing each work request on each respective associated buffer by a working thread among the plurality of working threads that owns each respective associated buffer. One system includes a processor for performing the above method and one computer storage medium includes computer code for performing the above method.

Abstract: Methods, systems, and computer program product embodiments for controlling congestion in a storage grid, by a processor device, are provided. In a storage grid, a storage request transmit queue length of storage requests submitted by a plurality of nodes is monitored, the storage request transmit queue comprising a queue holding the storage requests unable to be transmitted through a current transmission control protocol/internet protocol (TCP/IP) socket buffer of the storage grid. Upon reaching at least one of a certain threshold, a watermarked message indicating a specific one of the plurality of nodes is congested is transmitted to upper layer grid nodes in a hierarchy of the plurality of nodes transmitting the storage requests, and the upper layer grid nodes each alter the storage requests based upon the watermarked message.

Abstract: Methods, systems, and computer program product embodiments for controlling congestion in a storage grid, by a processor device, are provided. In a storage grid, a storage request transmit queue length is monitored. Upon reaching at least one of a certain threshold, a watermarked message is transmitted to a receiving node, the receiving node altering storage requests based upon the watermarked message.

Abstract: Various embodiments for data management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises directing data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid.

Abstract: Methods, computing systems and computer program products implement embodiments of the present invention that include detecting, on a communications network in a computing facility including a first computer coupled to a second computer via the communications network, an input/output (I/O) request conveyed from the first computer to the second computer. Subsequent to detecting the I/O request, data traffic resulting from the second computer processing the I/O request is identified on the communications network, and network statistics are collected based on the I/O request and the data traffic. Upon detecting a performance degradation of the computing facility, the performance degradation greater than a predetermined amount, heuristics can be applied to the collected network statistics, to identify a cause of the performance degradation and to identify a remedy to the detected performance degradation. In some embodiments, the identified cause and the identified remedy can be presented to a user on a display.

Abstract: Various embodiments for data management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises directing data Input/Output (I/O) operations from a host to an owning node according to a Logical Block Address (LBA) without a static assignment of ownership, notwithstanding any relationship between the host and the storage grid.

Abstract: Various embodiments for multipath management in a storage grid, by a processor device, are provided. In one embodiment, a method comprises continuously monitoring and comparing current data path devices against the current storage structure, and changing routing decision configurations when it is detected there is a more efficient data path.

Abstract: Methods, systems, and computer storage mediums including a computer program product for managing data in a computing network are provided. One method includes registering a plurality of buffers with a work queue in a server and assigning ownership to each of the plurality of buffers to a different working thread in a plurality of working threads. The method further includes continuously polling, by a polling thread, the work queue to determine when work requests are received by the work queue, upon receipt of each work request, determining which buffer among the plurality of buffers each work request is associated, and performing each work request on each respective associated buffer by a working thread among the plurality of working threads that owns each respective associated buffer. One system includes a processor for performing the above method and one computer storage medium includes computer code for performing the above method.

Abstract: Methods, systems, and computer program product embodiments for controlling congestion in a storage grid, by a processor device, are provided. In a storage grid, a storage request transmit queue length is monitored. Upon reaching at least one of a certain threshold, a watermarked message is transmitted to a receiving node, the receiving node altering storage requests based upon the watermarked message.

Abstract: Various embodiments for efficient data transfer in a Remote Direct Memory Access (RDMA) operation by a memory device. A file protocol header of the data is replaced with a block protocol header. The block protocol header enables transfer over a direct data path through a transport layer from a source to a target without outside manipulation by a central processing unit (CPU).