Abstract: Techniques for optimizing disk access are disclosed. In one particular exemplary embodiment, the techniques may be realized as a system for optimizing disk access comprising a module for reading files in a filesystem, the files comprising one or more file fragments, a module for determining a relative location of the one or more file fragments on a disk, a module for sorting an index of the one or more file fragments on the disk in one or more fragment tables according to the relative location of the one or more file fragments on the disk, a module for reading the one or more file fragments from the disk, a module for assembling one or more of the files from the one or more file fragments.

Abstract: A method and apparatus for optimizing computer network bandwidth usage to prevent congestion is described. In one embodiment, the method comprises comparing a permissible bandwidth usage with a data transfer rate to produce a comparison result and adjusting the data transfer rate for performing at least one data transfer operation based on the comparison result.

Abstract: Various systems and methods for using multiple clients for data backup are described. For example, one method involves accessing a namespace, where the namespace indicates locations of files. At least a portion of the namespace is divided into sets, where the sets correspond to a subset of the files. The files of the subset are accessed by plurality of nodes, and the accessing is based on the sets. Each of the nodes accesses the files of the subset. The nodes are used to store, at data storage, the files of the subset.

Abstract: Various systems and methods for enabling use of analytic functions for distributed storage data are described. For example, one method involves generating an index for a data stream that includes a plurality of objects. The index indicates a location of each of the plurality of objects. The method also involves performing a plurality of first functions that generate a plurality of first outputs. Performing these first functions includes accessing objects based on the index and generating an output for each object. Each output also includes the respective object. The method also involves performing one or more second functions, where the second functions use the first outputs.

Abstract: Various systems and methods for using multiple clients for data backup are described. For example, one method involves accessing a namespace, where the namespace indicates locations of files. At least a portion of the namespace is divided into sets, where the sets correspond to a subset of the files. The files of the subset are accessed by plurality of nodes, and the accessing is based on the sets. Each of the nodes accesses the files of the subset. The nodes are used to store, at data storage, the files of the subset.

Abstract: A system and method for escalating a level of backup protection for a cluster of nodes are described. A backup software application may be configured to backup application data used by the cluster of nodes according to a first level of backup protection. In response to detecting a failure of a node in the cluster, the backup software application may be reconfigured to backup the application data used by the cluster of nodes according to an escalated level of backup protection. For example, reconfiguring the backup software application to backup the application data according to the escalated level of backup protection may cause the backup software application to increase a frequency at which backup operations for backing up the application data are performed.

Abstract: A method and apparatus for optimizing computer network bandwidth usage to prevent congestion is described. In one embodiment, the method comprises comparing a permissible bandwidth usage with a data transfer rate to produce a comparison result and adjusting the data transfer rate for performing at least one data transfer operation based on the comparison result.