Abstract: Embodiments for discovering read failures in a data storage system. Data read from underlying media of the data storage system is validated by initializing a prefix of a buffer used to read the data with a first sequence of bytes of a predefined number. The first sequence of bytes is compared to a sequence of actual bytes of the data read into the buffer. When the first sequence of bytes returns an equal value to the sequence of the actual bytes of the data read, a second sequence of bytes of the predefined number is generated and compared to a subsequent data read to determine the validity.

Abstract: Improving storage device efficiency during data replication. An asynchronous data replication process is initiated between a source computer and a target computer over a network. Performance of the target computer and a storage device of the target computer is monitored. At least one portion of data stored on the source computer is identified for the data replication, wherein the at least one portion of the data is organized in a data block. Whether to modify a size of the data block is determined, based on the monitored performance of the target computer. Responsive to determining to modify the size of the data block, based on the monitored performance of the target computer, the size of the data block is modified.

Abstract: Mechanisms to trigger commands on target devices when source devices broadcast certain notifications to thereby automate common, routine, or otherwise related activities among heterogeneous devices are provided. For example, when a source device broadcasts a notification that arrives at a control device, a trigger that links the notification to a command on the target device may be defined and stored at the control device, which may then automatically invoke the command on the target device when the source device broadcasts the notification again in the future. In other use cases, the trigger and the linked command may be pushed to the broadcasting source device, which may then invoke the command on the target device when broadcasting the notification in the future, or a listener may be configured on the target device such that the target device may invoke the command in response to locally detecting the notification linked thereto.