Nasuni Corporation

Emc Corporation

Hitachi Data Systems Corporation

Christopher S Lacasse

David M Shaw

Matthew M McDonald

Russell Andrew Neufeld

Kevin William Baughman

Akshay K Saxena

Scott E Joyce

Robert F Mason

Matthew Michael McDonald

Jon Vincent

Robert M Mason, Jr

Vitaly Zolotusky

Gregory William Lazar

Robert S Mason, Jr

Munish T Desai

Benjamin Isherwood

Jack A Orenstein

Richard Rogers

Gev F Daruwalla

A versioned file system comprising network accessible storage is provided. Aspects of the system include globally locking files or groups of files so as to better control the stored files in the file system and to avoid problems associated with simultaneous remote access or conflicting multiple access requests for the same files. A method for operating, creating and using the global locks is also disclosed. A multiprotocol global lock can be provided for filing nodes that have multiple network protocols for generating local lock requests.

Versioned file system with global lock

A cloud-based write-once object store is configured to store inode-based data exported to the store from an enterprise file system. For each version of data (e.g., a file) exported to the store, there is a version of the inode corresponding to that data. As versions of the data are exported to the cloud, the system creates multiple versions of the inode. The set of inode versions corresponding to the versions of the file have a pointer associated therewith that specifies the latest version of the data associated with the inode. The inode versions in the set share the same pointer. The inode versions represent a revision history for the inode. For each inode version corresponding to a version of the data, information is received and stored in a new portion of the object store. The inode version for a file version comprises a list of data chunks for the file.

Network accessible file server

A versioned file storage system (VFS) and method for operating and using the same is disclosed. In an aspect, a mechanism is provided wherein a first VFS interface unit coupling the VFS to a local data storage system is replaced with a second VFS interface unit in a coordinated procedure for taking the first unit offline, making a reliable snapshot of its data and cache structure in the VFS, and loading the same data and cache structure into the second VFS interface brought online. The first and second VFS interfaces transfer the necessary data to achieve the switch through respective side-loading daemons running in each interface. Clients in the local data storage system experience minimal interruption of services in the VFS.

Systems and methods for restoring an interface to a global file system

An operations server synchronizes updates to a cloud-based shared versioned file system. The shared versioned file system includes directories and sub-directories that are divided into shards. The operations server coordinates requests from local filer servers, each running a respective local version of the shared versioned file system, to update a shard in the cloud-based shared versioned file system. The operations server can provide a global lock on the shard to a local filer server before it updates the shard in the cloud-based shared versioned file system.

Shard-level synchronization of cloud-based data store and local file systems

A method is used in managing certificates between software environments. In a Flex operating environment, a certificate store is maintained that is accessible to a Java operating environment. In the Flex operating environment, certificates from the Flex and Java operating environments are caused to be validated and stored in the certificate store.

Managing certificates between software environments

Archive management is enhanced by logically partitioning a physical cluster. Using an interface, an administrator defines 'tenants' within the cluster. A namespace is a logical partition of the cluster for a collection of objects. Each namespace has a private file system. This approach enables a user to segregate cluster data into logical partitions. Using the interface, a namespace for a tenant is configured without affecting a configuration of another namespace. One configuration option is 'versioning,' by which an administrator can elect to enable multiple versions of a same data object to be stored in association with a namespace. Once versioning is enabled for a namespace, the administrator can set a configuration parameter identifying a time period for maintaining a version. Preferably, versioning is dasabled for a data object under retention.

Fixed content storage within a partitioned content platform using namespaces, with versioning

A method and system for use in managing secure communications with software environments is disclosed. In at least one embodiment, the method and system comprises maintaining, in a Java operating environment, a regulatory compliant communications facility that is accessible to a Flex operating environment. The Flex and Java operating environments are caused to use the regulatory compliant communications facility for network communications with a data storage system.

Managing secure communications with software environments

A content platform (or 'cluster') that comprises a redundant array of independent nodes is logically partitioned. Using a web-based interface, an administrator defines one or more 'tenants' within the cluster, wherein a tenant has a set of attributes: namespaces, administrative accounts, data access accounts, and a permission mask. A namespace is a logical partition of the cluster that serves as a collection of objects typically associated with at least one defined application. Each namespace has a private file system with respect to other namespaces. This approach enables a user to segregate cluster data into logical partitions. Using the administrative interface, a namespace associated with a given tenant is selectively configured without affecting a configuration of at least one other namespace in the set of namespaces. One configuration option is a &#x201c;disposition service&#x201d; that, once enabled for a namespace, automatically deletes objects that were once under retention and whose retention time has expired. Preferably, the disposition service deletes objects that do not have a &#x201c;retention hold&#x201d; associated therewith. The service enables the content platform to automatically reclaim cluster capacity while minimizing external involvement and archive load.

Growing community of inventors

Grafton, MA, United States of America

Christopher S Lacasse