Emc Corporation

Vulcan Inc.

Vulcan Portals Inc.

Robin Budd

Arieh Don

Alexandr Veprinsky

Rod G Fleck

Anthony F Istvan

Marcellino Tanumihardja

Christopher W Jones

Korina J B Stark

Alexander Veprinsky

A content management (CM) system is provided to centrally control operation of one or more connected devices by issuing control requests and/or data requests. In some situations the connected device(s) include devices that control presentation of television programming-related content, such as digital video recorder ('DVR') devices and media center devices, and in other situations may include other types of media devices and/or other electromechanical ('E/M') devices that may be centrally controlled, such as E/M devices for home automation that may operate independently or in conjunction with the media devices. In some situations, the CM system communicates with the connected devices via a network and using appropriate protocol(s), and may be accessed remotely via a network so as to allow a user to remotely operate the CM system. The CM system may further control searching, identification, selection, and presentation of pieces of media content by the connected device(s).

Network-accessible control of one or more media devices

A system and method for providing continuous availability of information that is normally transported via a network is provided. The system and method uses a process that is used with each computer in a system to simulate the functionality of a network interface card wherein upon the unavailability of the network, transmission packets containing a unique header are send by one application in the system through the process, which stores the transmission packets in queue, and upon filling of the queue writes filled queue to a send volume contained on a storage system. The storage system then copies the data to a second volume, which can be read by a second application. The first and second volumes can either be remotely dispersed or local to one another.

Method and apparatus for providing continuous communications between computers

Method and apparatus for providing continuous communication between computers

An electronic device, such as a hand-held portable computer, is provided with client-side email capability that allows emails to be independently downloaded from a server, regardless of an operating mode of an email application and without using the standard email retrieval mechanism of the email application. The emails are periodically downloaded without attachments in response to a poll of the server and if a sufficient high-speed connection to the server is available, and then the downloaded email is locally stored in a local cache of the portable computer. Attachments associated with downloaded emails stored in the local cache can be selectively downloaded, via a background process, from the server independently of the operating mode of the email application and during any suitable power state of the electronic device. Synchronization of attachments to emails in the local cache is also independently performed, thereby bypassing synchronization that is normally performed by the email application while in the online mode.

Method and system for email synchronization for an electronic device

Method and system for polling a server for new emails, downloading the new emails in a background process, and caching the downloaded emails for access by an email application of an electronic device, such as a portable computer

Described are techniques used in detection of a data corruption in a computer system. A host issues a write request that includes a checksum value determined in accordance with data associated with the write request. The write request is received by a data storage system that performs data validation using the checksum. If the data validation succeeds, the write operation proceeds. Otherwise, it is determined that the data is corrupt and a checksum error is returned to the issuing host. The host issues a vendor-defined write request operation that includes the checksum as a data field in the request packet sent to the data storage system. Filter drivers are used in obtaining the checksum and modifying the write request packet to specify a vendor-defined write operation if checksumming is enabled for the write operation.

End-to-end checksumming for database environments

Described are techniques used in detection of a data corruption in a computer system in connection with read and write operations. For a write operation, a host issues a write request that includes a checksum value determined in accordance with data associated with the write request. The write request is received by a data storage system that performs data validation using the checksum. The host issues a vendor-defined write request operation that includes the checksum as a data field in the request packet sent to the data storage system. For a read operation, a host issues a read request and the data storage system determines a checksum value before servicing the read request. The checksum is validated at the top of the I/O stack on the host by the file system filter driver.

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Seattle, WA, United States of America

Robin Budd