Citrix Systems, Inc.

Cisco Technology, Inc.

Washington University

Tintri by Ddn, Inc.

Jibe Networks, Inc.

Tintri Inc.

Orbital Data Corporation

Zubin D Dittia

Dan S Decasper

Allen Samuels

Robert D Plamondon

Richard Jensen

Michael Ovsiannikov

Jonathan S Turner

William Norman Eatherton

Prashanth Mundkur

Rajib Ghosh

John Andrew Fingerhut

Shobhit Dayal

Daniel E Lenoski

Abhay Kumar Jain

Shiva Kalyani Ankam

Sanjay Chadda

Michael Brian Galles

Vyacheslav Vladimirovich Malyugin

Mark G Gritter

Thomas Dejanovic

Brandon W Salmon

Raj Ashok Sudarsanam

Kieran J Harty

Robert Rodriquez

Karl Montemayor

Michael Osviannikov

John Murayama

Vinod Gerard John Peris

Dan DeCasper

Samuel Jensen

In an embodiment, a system for handling a device in latency state in a redundant storage system includes a processor configured to process a write request to a plurality of devices associated with a redundant storage system. The processor is further configured to receive a set of indications of write successes from a set of devices included in the plurality of devices other than a first device, and send an indication of a completed write to a requestor associated with the write request based at least in part on an indication that the first device meets a set of one or more criteria associated with a latency state. The system further includes a memory coupled to the processor and configured to store the write request.

Handling a device in a latency state in a redundant storage system

Efficient deduplication for storage systems is disclosed, including: using the current data structure to track a set of deduplication data entries associated with a collection group; determining a flush criterion has been met; and storing the set of deduplication data entries of the current data structure as one or more persistent objects associated with the collection group in a persistent storage, wherein the one or more persistent objects are usable to update a set of persistently stored metadata associated with the collection group that tracks deduplication data entries generated before a previous merge operation.

Efficient deduplication for storage systems

Efficient recovery of deduplication data for high capacity systems is disclosed, including: reading from the data storage device a data structure that tracks a plurality of segments to which a plurality of persistent objects have been recently written, wherein segments are written to in a monotonically increasing numerical order; selecting a checkpoint segment from among the plurality of segments based at least in part on a plurality of segment numbers corresponding to respective ones of the plurality of segments; using the checkpoint segment and a segment associated with a latest available segment number to determine a set of candidate segments; reading at least a portion of the set of candidate segments to identify a data storage block for which a corresponding deduplication data entry is not already stored in persistently stored deduplication data entries; and storing a new deduplication data entry to insert a fingerprint associated with the data storage block in a current data structure stored in a memory.

Efficient recovery of deduplication data for high capacity systems

Dynamic RAID expansion is disclosed, including: incrementally expanding a redundant storage system comprising a plurality of storage drives by adding one or more storage drives to the plurality of storage drives; and storing, for each stripe included in the redundant storage system, metadata indicating which storage drives in the redundant storage system store valid data for the stripe.

Dynamic raid expansion

The solution described herein provides systems and methods for the interoperability of network processing programs that process network packets at different levels of the network stack. This solution bridges the communications of a network packet between a first network processing program operating at a first level of a network stack in an intermediary and a second network processing program operating at a second level of the network stack of the intermediary. The first network processing program may modify an incoming network packet so that the packet may traverse the network stack to an upper level of the stack to the second network processing program. After processing the network packet at the upper layers of the stack or by the second network processing program, the first network processing program modifies the network pack in order to transmit the packet to the intended destination while traversing the intermediary.

Systems and methods for bridging a WAN accelerator with a security gateway

A method and apparatus for peer-to-peer video precaching is described. In one embodiment, the method comprises building a user profile, periodically checking for new content of objects in the user profile, maintaining a data base of available objects and location of said objects, and determining the download location of an object requested by a user.

Personalized content delivery using peer-to-peer precaching

Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long compression history matches, a network device may improve compression efficiently and speed. A network device may also use application specific parsing to improve the length and number of compression history matches. Further, by sharing compression histories and compression history indexes across multiple devices, devices can utilize data previously transmitted to other devices to compress network traffic. Any combination of the systems and methods may be used to efficiently find long matches to stored data, synchronize the storage of previously sent data, and share previously sent data among one or more other devices.

Systems and methods for sharing compression histories between multiple devices

A data storage system is disclosed, including: a first storage device of a first storage device type, a second storage device of a second storage device type, and a processor configured to implement a hybrid file system configured to store each of a plurality of data values in at least a corresponding primary location, which for a given data value may be in either the first storage device or the second storage device; wherein the hybrid file system is configured to use a first access approach optimized based on a first access attribute of the first storage device type to interact with the first storage device and a second access approach optimized based on a second access attribute of the second storage device type to interact with the second storage device. Reading data is disclosed, including: determining that a storage location on a first tier storage from which a requested data was written back to a second tier storage has not been reclaimed by a garbage collection associated with the first tier storage, and retrieving the data from the storage location on the first tier storage.

Hybrid file system for virtual machine storage

A method and apparatus for displaying locally stored content objects is disclosed. In one embodiment, the method comprises running an agent on a machine and integrating one or more locally stored objects in a page being displayed using information from the agent.

Web-integrated display of locally stored content objects

Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long compression history matches, a network device may improve compression efficiently and speed. A network device may also use application specific parsing to improve the length and number of compression history matches. Further, by sharing compression histories, compression history indexes and caches across multiple devices, devices can utilize data previously transmitted to other devices to compress network traffic. Any combination of the systems and methods may be used to efficiently find long matches to stored data, synchronize the storage of previously sent data, and share previously sent data among one or more other devices.

Systems and methods for providing dynamic ad hoc proxy-cache hierarchies

Systems and methods of compression history expiration and synchronization

A method and apparatus for displaying locally stored content objects is disclosed. In one embodiment, the method comprises receiving a message containing one or more parameters indicative of one or more characteristics of a client, and sending one of a plurality of groups of one or more content objects from a set of content objects to the client based on the one or more parameters, wherein each of the plurality of groups is suited for use with clients having a different set of one or more parameters.

Advanced content and data distribution techniques

Systems and methods of clustered sharing of compression histories

Growing community of inventors

San Mateo, CA, United States of America

Zubin D Dittia