Abstract: A system for facilitating upload file optimization via transaction transformation. A request is received for an operation to upload a file to the cloud. The system bypasses a transaction processing (sub)system and attempts to upload the file to a staging area of the cloud. When the upload transaction is ready to be executed, the system determines an upload status of the file. The system transfers the file from the staging area to an intended destination if the file has been uploaded to the staging area. If the file is not yet uploaded to the staging area, the system determines if an upload operation failed. If an upload operation did not fail, the system waits for the upload to finish prior to transferring the file to the intended destination. If the upload operation did fail, the system uploads the file to the intended destination. Once the file is transferred to the intended destination, the transaction may be marked as complete in the journal.

Abstract: A method of managing file permissions in a remote file storage system includes defining permissions for the remote file storage system and controlling access to objects on the remote file storage system according to the permissions of the remote file storage system. The permissions are transferred to a client file storage system remote from the remote file storage system, and access to objects on the client file storage system is controlled according to the permissions of the remote file storage system. A remote file storage system includes a permissions file generator operative to generate a permissions file, which is transmitted to a client file storage system for enforcement at the client file storage system.

Abstract: A novel system for performing valuations of file system objects include a processor configured to execute code and memory configured to store data and the code. The code includes an accumulator configured to accumulate secondary data associated with said file system objects, a data aggregator configured to arrange the secondary data in the memory, and a value generator configured to generate an object value indicative of the value of at least one of the file system objects to a particular entity. In a particular embodiment, the value generator creates a record in a valuation database to associate the object value with the at least one of the file system objects.

Abstract: A system and methods for presenting a hybrid cloud cache as a file system. The system implements a set of standard file system command line interfaces that present the objects stored by the hybrid cloud cache to users of the system as if the users were viewing and interacting with a traditional file system. The system provides an interactive shell to the users to view the contents of the hybrid cloud cache. The system may be configured to operate on a live instance as well as on an on-disk structure of the hybrid cloud cache. The system may provide the ability to present partially cached cloud data as a file system via the interactive shell for the purposes of development, support, and troubleshooting.

Abstract: Cloud storage systems and methods are described for providing event-based user state synchronization among the various cloud elements. A global user directory is maintained on a remote cloud storage system. The global user directory includes a plurality of global user definitions associated with a plurality of user accounts, where each of the user accounts has access to at least one of a remote file system hosted by the remote cloud storage system and a local file system hosted by a local cloud storage system. As global user definition are altered on the remote cloud storage system, user events are generated and communicated to the local cloud storage system, where they are applied to synchronize the local user definitions with the global user definitions. The invention facilitates centralized control of user definitions, near real-time event delivery to local cloud storage systems, and separation of authentication processes from customers' active directory services.

Abstract: A system and methods for enhancing content collaboration by conflict detection and resolution. A hybrid cloud cache receives a request from a client to upload an object to the cloud. The hybrid cloud cache may perform an internal lookup to find the latest version of the object known to it. This lookup may return a local identifier or a cloud identifier. The cache may compare a client-provided identifier to the local identifier or to the cloud identifier that is mapped to the local identifier to determine if the client-provided identifier refers to the latest uploaded version of the object. The system may determine that a conflict exists if the client-provided identifier does not match either identifier. The system may generate an alternate name for the object and upload the renamed object to the cloud from the hybrid cloud cache.

Abstract: A system and methods for presenting a hybrid cloud cache as a file system. The system implements a set of standard file system command line interfaces that present the objects stored by the hybrid cloud cache to users of the system as if the users were viewing and interacting with a traditional file system. The system provides an interactive shell to the users to view the contents of the hybrid cloud cache. The system may be configured to operate on a live instance as well as on an on-disk structure of the hybrid cloud cache. The system may provide the ability to present partially cached cloud data as a file system via the interactive shell for the purposes of development, support, and troubleshooting.

Abstract: A system for handling Implicit transactions in a hybrid cloud cache. The hybrid cloud cache maintains folders in a metadata file system that includes a hierarchy of cached folders, and maintains a meta-file containing metadata of files and folders. The system obtains a meta-file from a cloud platform and compares that to a meta-file obtained from the hybrid cloud cache. An object associated with an Implicit metadata transaction is transferred to an internal namespace of the hybrid cloud cache if the comparison indicates that certain conditions are met. The system may perform a bottom-up traversal of the namespace and may abort the traversal if an outstanding explicit transaction for the object is present or the object exists in the cloud platform. An object may be moved to a temporary storage location if there is no explicit transaction on it and the object does not exist in the cloud platform.

Abstract: A system for effectively addressing the fast-producer and slow-consumer problem for persistent hybrid cloud caches. In particular, the system and associated methods ensure the integrity of data stored by persistent caches by utilizing a plurality of journals, including a user journal and a cloud journal. The user journal records operations conducted by users of the system in records. Before the records are transferred to a cloud storage system, the records are transferred to the cloud journal, which may be configured to be larger than the user journal. Once a record is transferred from the user journal to the cloud journal, the record may be released from the user journal, thereby increasing capacity of the user journal for subsequent operations to be recorded. Each record may then be transferred to the cloud storage system from the cloud journal, which may then cause each record to be released from the cloud journal.

Abstract: Example systems and methods for efficient data governance are disclosed. Metadata associated with file objects is analyzed to estimate, for each file object, the likelihood that the file object includes sensitive data. The estimates are used to prioritize the file objects for analysis of the file objects' content to determine the whether the file objects include data deemed to be of a sensitive nature. In cloud-based systems/methods the estimates are also used to prioritize the file objects for transfer from a remote file storage system to the cloud-based system for analysis of content. The disclosed systems and methods significantly reduce the time required to identify sensitive file content in a large number of file objects.

Abstract: A system for facilitating upload file optimization via transaction transformation. A request is received for an operation to upload a file to the cloud. The system bypasses a transaction processing (sub)system and attempts to upload the file to a staging area of the cloud. When the upload transaction is ready to be executed, the system determines an upload status of the file. The system transfers the file from the staging area to an intended destination if the file has been uploaded to the staging area. If the file is not yet uploaded to the staging area, the system determines if an upload operation failed. If an upload operation did not fail, the system waits for the upload to finish prior to transferring the file to the intended destination. If the upload operation did fail, the system uploads the file to the intended destination.

Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.

Abstract: A system for resolving transient and localized errors in a hybrid cloud cache. The system may include a subsystem within a hybrid cloud cache that provides a way to handle errors associated with uploading files or folders to a cloud. The subsystem may be used to recover files and folders created by a user that could not be pushed to the cloud, while also ensuring that metadata and data are not lost. The subsystem may work with the transaction processing subsystem of the hybrid cloud cache to facilitate the release of transactions associated with the files and folders that could not be pushed to the cloud. By doing so, the subsystem assists in unblocking subsequent transactions or user operations and allows the hybrid cloud cache to upload files and folders to the cloud without interruption.

Abstract: A method for synchronizing a local file system (LFS) and a remote (cloud) file system (RFS) includes the step of storing events indicative of differences between the LFS and the RFS, where the events are associated with file system objects of the LFS and RFS. The method further includes the steps of prioritizing the events, generating file system operations for the events based at least in part on the prioritization of the events, and performing at least some of the file system operations to synchronize the LFS and RFS. Prioritizing the events includes defining a plurality of service classes (e.g., based on type of event, event attribute, etc.), assigning a priority to each of the service classes, and assigning each event to one of said service classes. Systems are also described. The invention allocates limited synchronization resources based on a predefined policy to synchronize important file system objects sooner.

Abstract: A method for synchronizing a file system (FS) and a remote file system (RFS) includes monitoring the FS for FS events, generating FS event records, receiving RFS event records of RFS events, generating file system operations (FSOs) based on the FS and RFS event records, and communicating the FSOs to the FS and RFS to synchronize them. A method for generating the FSOs includes accessing a plurality of FS and/or RFS event records, processing the accessed records to generate processed event records, generating the FSOs based on the processed event records, and outputting the FSOs to cause synchronization of the FS and RFS. Systems are also described. The invention facilitates event-based, steady-state synchronization of local and remote file systems.

Abstract: A method of managing file permissions in a remote file storage system includes defining permissions for the remote file storage system and controlling access to objects on the remote file storage system according to the permissions of the remote file storage system. The permissions are transferred to a client file storage system remote from the remote file storage system, and access to objects on the client file storage system is controlled according to the permissions of the remote file storage system. A remote file storage system includes a permissions file generator operative to generate a permissions file, which is transmitted to a client file storage system for enforcement at the client file storage system.

Abstract: A system for effectively addressing the fast-producer and slow-consumer problem for persistent hybrid cloud caches. In particular, the system and associated methods ensure the integrity of data stored by persistent caches by utilizing a plurality of journals, including a user journal and a cloud journal. The user journal records operations conducted by users of the system in records. Before the records are transferred to a cloud storage system, the records are transferred to the cloud journal, which may he configured to he larger than the user journal. Once a record is transferred from the user journal to the cloud journal, the record may be released from the user journal, thereby increasing capacity of the user journal for subsequent operations to be recorded. Each record may then be transferred to the cloud storage system from the cloud journal, which may then cause each record to be released from the cloud journal.

Abstract: A system for handling Implicit transactions in a hybrid cloud cache. The hybrid cloud cache maintains folders in a metadata file system that includes a hierarchy of cached folders, and maintains a meta-file containing metadata of files and folders. The system obtains a meta-file from a cloud platform and compares that to a meta-file obtained from the hybrid cloud cache. An object associated with an Implicit metadata transaction is transferred to an internal namespace of the hybrid cloud cache if the comparison indicates that certain conditions are met. The system may perform a bottom-up traversal of the namespace and may abort the traversal if an outstanding explicit transaction for the object is present or the object exists in the cloud platform. An object may be moved to a temporary storage location if there is no explicit transaction on it and the object does not exist in the cloud platform.

Abstract: Example systems and methods for efficient data governance are disclosed. Metadata associated with file objects is analyzed to estimate, for each file object, likelihood that the file object includes sensitive data. The estimates are used to prioritize the file objects for analysis of the file objects’ content to determine the objects include data deemed to be of a sensitive nature. In cloud-based systems/methods the estimates are also used to prioritize the file objects for transfer from a remote file storage system to the cloud-based system for analysis of content. The disclosed systems and methods significantly reduce the time required to identify sensitive file content in a large number of file objects.

Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.