Sun Microsystems, Inc.

Other

Neopath Networks, Inc.

F5 Networks, Inc.

Cisco Technology, Inc.

Motorola Corporation

Thomas K Wong

Panagiotis Tsirigotis

Sanjay R Radia

Rajeev Chawla

Anand Iyengar

Swee Boon Lim

Richard A Simpkins

Chi Ming Wong

Robert J Goedman

Peter W Madany

Zuwei Liu

Ron S Vogel

Gaurav Gupta

Michael W Patrick

Theron D Tock

Matthew Eric Seitz

Yu Cheong Chan

Omid Ahmadian

Geetha Srikantan

Borislav Marinov

Vladan Z Marinkovic

Michael N Nelson

Saravanan Coimbatore

Lalitha Krishnan

Tadd Ottman

Chitra Makkar

Suma Suresh

Ashvin Kamaraju

Zuqei Liu

Matt Seitz

A foundationless pole apparatus including an elongated pole shaft, a wheeled rolling weight box, a pole base connected to the pole shaft and securement structure securing the rolling weight box with the front wheels of the rolling weight box on the base to the pole base and the pole shaft.

Foundationless pole apparatus

A system for calibrating the video camera of motion detection equipment based on movement of a lighter than air motion object within the camera view of the video camera, the lighter than air object including at least one balloon filled with helium or other lighter than air gas.

Motion detection equipment calibration system

Apparatus and method for protecting against theft of wiring or other object formed of electrically conductive material in which the object is connected to a source of electrical power. The voltage of the object is sensed by a voltage sensor and a transmitter actuated when the voltage sensor detects a voltage change in the object.

System for protecting against theft of metal wire and other objects

A system and method for parallel file system traversal using multiple job executors is disclosed. The system includes a pool of job executors, a job queue, and a trigger tracker. An object, representative of a node in the filesystem, is added (i.e., pushed) to the job queue for processing by an job executor. The job queue assigns (i.e., pops) objects to job executors in accordance to a LIFO (Last In First Out) ordering. Then the job executor performs an action such as copy. In one embodiment, the trigger tracker follows the processing of a child nodes to a particular child node. Thus, the filesystem is being traversed by several job executors at the same time.

Parallel filesystem traversal for transparent mirroring of directories and files

A plurality of network file manager switches interoperate to provide remote file virtualization. Copies of file data and/or metadata are maintained at a central site and at one or more remote sites. The network file manager switch at the remote site may satisfy certain client requests locally without having to contact the network file manager switch at the central site. A global namespace is maintained and is communicated to all network file manager switches.

Remote file virtualization in a switched file system

A pole installation system includes a pole base and pole member releasably connected to the pole base. Mover structure is connected to both the pole base and the pole member to raise or lower the pole member while it is pivotally connected to the pole base to install or disinstall the pole member.

Pole installation system

A method and apparatus for removing duplicated data in a file system utilizing the concept of storage tiers. A synthetic namespace is created via file virtualization, and is comprised of one or more file systems. Deduplication is applied at the namespace level and on all of the file systems comprising the synthetic namespace. All files in a file system in a higher storage tier whose contents are identical to at least one other file in the synthetic namespace are moved to a destination file system in a lower storage tier. For each set of duplicated files that are moved from the original servers, a single instance copy of the file is left behind as a mirror copy. Read access to a duplicated file is redirected to its mirror copy. When the first write to a duplicated file is received, the association from the duplicated file stored in the destination server to its mirror copy that is stored in the origin server is discarded. Access to the 'modified' duplicated file will then resume normally from the destination server.

File deduplication using storage tiers

A NAS (Network Attaches Storage) switch authenticates a client on multiple file servers for proxy services. The NAS switch enables proxy services by successively authenticating the client on the file servers using referrals. The NAS switch further comprises a connection manager to establish connections to the client and the file servers, a referral manager to redirect the client for successive authentications, and a transaction manager to perform data transfers with the file servers on behalf of the client. The system components support DFS (Distributed File System), and communicate using a protocol dialect that supports referral mechanisms such as NFSv4 (Network File Server version 4) or CIFS (Common Internet File System). The transaction manager also performs a protocol dialect translation service when the connection manager negotiates one protocol dialect with the client, and a different protocol dialect with the file server.

Enabling proxy services using referral mechanisms

A pole installation system employing a pole, a base member connected to the pole having a pivot edge segment forming a stable support pivot, and counter weight structure incorporated in or connected to the base member for countering forces exerted by gravity on the pole during tilting of the pole and base member.

Foundationless pole installation system

A system for detecting intrusion into a space which includes motion detection light structure for producing and projecting a light pattern formed by a plurality of light beams of a certain character into a space and video motion detecting structure including a video camera having a field of view including at least some of the light pattern to detect intrusion into the light pattern. When motion is detected, images of the video camera are transmitted for threat assessment, and a scene illumination light is activated to improve visibility during nighttime operation.

Security threat detection system

A video monitoring system including two monitoring stations, each station having a plurality of monitoring screens, the same surveillance video images appearing on monitoring screens of both of said stations but the relative positioning of said surveillance video images differing at said stations.

Efficient redundant video monitoring system

The present invention provides selective migration in a storage network in accordance with a policy. The policy can include rules that establish which objects are migrated from a source file server to a destination file server based on file attributes (e.g., file type, file size, last access time, frequency of access). For example, large multimedia files that consume I/O bandwidth on expensive or critical file servers, without adding much value to enterprise productivity, can be migrated to a commodity or less critical file server.

Storage policy monitoring for a storage network

Systems and methods to customize a namespace using a synthetic namespace. A NAS switch provides file migrations in a NAS storage network that are transparent to the clients. The NAS switch file handles are used to customize a namespace. More specifically, a synthetic namespace is generated from one or more file location tables that map the switch file handles to NAS file handles. The NAS file handles are independent of a physical export containing the objects referred to by the NAS file handles. In one example, the synthetic namespace presents a home directory corresponding to a location of a user.

Customizing a namespace in a decentralized storage environment

Load sharing clusters in which each node is responsible for one or more non-overlapping subset(s) of the cluster namespace and will process only those requests that access file or directory objects in the partitioned namespace that the node controls while redirecting requests designated for other nodes. A non-overlapping subset may be migrated from a source node to a destination node, for example, for load sharing or hotspot mitigation. Migration typically includes maintaining a file virtualization link from the destination node to the source node to permit forwarding of requests by the destination node to the source node during migration of metadata and then migration of data from the source node. After migration is complete, the file virtualization link is broken and the destination node services requests for the non-overlapping subset from the migrated metadata and data.

Load sharing cluster file systems

A NAS switch provides file migrations in a NAS storage network that are transparent to the clients. A source file server exports an original NAS file handles indicative of object locations on the source file server to the NAS switch. The NAS switch modifies the original NAS file handles to an internal file system and maps the original NAS file handles to a switch file handles independent of location. The NAS switch exports the switch file handles to a client. The client looks-up objects and makes NAS requests to the source file server using switch file handles. The NAS switch performs file migration by first replicating the namespace containing data to be migrated from source file server to a destination file server. Separately, the NAS replicates data which is a relatively longer process than the namespace replication. During data replication, namespace access requests for objects are directed to the replicated namespace. After data replication, file object requests for migrated objects are redirected to the destination file server in a process that is transparent to the client.

Growing community of inventors

Pleasanton, CA, United States of America

Thomas K Wong