A distributed storage system includes multiple resource nodes each having associated storage media. The resource nodes are configured to operate a first protocol between the resource nodes that exchanges availability and performance information for storage elements in the associated storage media. The resource nodes also operate a second protocol that dynamically distributes and redistributes data between the different resource nodes based on the availability and performance information for the storage elements. Relative distances may be identified between the different resource nodes and the second protocol may weight the availability and performance information based on the relative distances. The second protocol also may identify types of unshared use, shared use, and concurrent use for different portions of the data and distribute the portions of the data to other resource nodes based on the identified types of use.

A first node group including at least three nodes is predefined in a distributed storage system. Each node of the first node group is configured to send data blocks stored in storage devices managed by the node to other nodes belonging to the first node group. A first node is configured to receive data blocks from two or more other nodes in the first node group. The first node is configured to create a redundant code using a combination of data blocks received from the two or more other nodes and store the created redundant code to a storage device different from storage devices holding the data blocks used to create the redundant code. Combinations of data blocks used to create at least two redundant codes in redundant codes created by the first node are different in combination of logical addresses of constituent data blocks.

A system and method for rapid data investigation and data integrity analysis is disclosed. A data set is received by a server computer from one or more client computers connected with the server computer via a communications network, and the data set is stored in a distributed storage memory. One or more analytical processes are executed on the data set from the distributed storage memory to generate statistics based on each of the analytical processes, and the statistics are stored in a random access memory, the random access memory being accessible by one or more compute nodes, which generate a graphical representation of at least some statistics stored in the random access memory. The graphical representation of at least some statistics is then formatted for transmission to and display by the one or more client computers.

In accordance with embodiments, there are provided mechanisms and methods for sharing content via links. These mechanisms and methods for sharing content via links can enable customizable features associated with the operations related to those links. These features may include generating customized reports on usage of the links, and/or exposing one or more application programming interfaces (APIs) enabling applications to access the links and/or logic associated with operations related to those links.

Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a system that controls content distribution using a feedback loop. Content is distributed over multiple different online channels using a same initial selection value for distribution over each different online channel. An observed user actions required for distribution of the content over the multiple different online channels is received through a feedback loop and for multiple different distributions of the content. Based on the observed user actions received through the feedback loop, a predicted user action rate is determined for the multiple different distributions across the multiple different online channels. The selection value is adjusted based on a difference between the predicted user action rate and a reference distribution amount specified by a provider of the content. The content is distributed over the multiple different online channels using the adjusted selection value.

Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a system that controls content distribution using a feedback loop. Content is distributed over multiple different online channels using a same initial selection value for distribution over each different online channel. An observed user actions required for distribution of the content over the multiple different online channels is received through a feedback loop and for multiple different distributions of the content. Based on the observed user actions received through the feedback loop, a predicted user action rate is determined for the multiple different distributions across the multiple different online channels. The selection value is adjusted based on a difference between the predicted user action rate and a reference distribution amount specified by a provider of the content. The content is distributed over the multiple different online channels using the adjusted selection value.

A file server apparatus includes a second file system volume including cache data of a first file system volume stored in a shared file storage apparatus. The file server apparatus determines the operation type indicated by an access request to the first file system volume from a client. When the operation type is directory operation, the file server sends an instruction of directory operation to the shared file storage apparatus, and then transmits a completion response to the client. When the operation type is file operation, the file server apparatus executes a file operation in the second file system volume, transmits a completion response to the client, and then transmits a file operation instruction to the shared file storage apparatus.

A method of transparently inserting a virtual storage layer into a Fibre channel based storage area network (SAN) while maintaining continuous I/O operations is provided. A device is inserted between a host entity and a first storage device. The device identifies a plurality of first paths between the host entity and the first storage device, and defines a plurality of second paths by defining, for each first path among the plurality of first paths, a corresponding second path between the host entity and a second storage device. The device determines, for each of the plurality of first paths, a respective first state. The device establishes, for each of the second paths among the plurality of second paths, a second state based on the first state of the corresponding first path. The device redirects, to the second storage device, communications directed from the host entity to the first storage device, via the plurality of second paths.

Methods and systems disclosed herein relate generally to temporally prioritizing queries of queue-task partitions based on distributions of flags assigned to bits corresponding to access rights.

A method includes obtaining first information associated with control of multiple computing devices, where the first information relates to possible changes to processing tasks performed by the computing devices. The method also includes obtaining second information associated with building infrastructure operations performed by one or more building systems of one or more buildings that house the computing devices. The method further includes identifying one or more changes to one or more of the computing devices using the first and second information. In addition, the method includes outputting third information identifying the one or more changes.