Emc Corporation

Other

Natan Vishlitzky

Moshe Yanai

Bruno Alterescu

Yuval Ofek

Haim Kopylovitz

Daniel Castel

Gadi G Shklarsky

Hana Moreshet

Erez Ofer

Arieh Don

Steven M Blumenau

Adi Ofer

Eli Shagam

Douglas Eric LeCrone

Alexandr Veprinsky

Mathieu Gagne

Eitan Bachmat

Philip E Tamer

Ishay Kedem

Martin Farley

Izhar Sharon

Daniel D C Castel

Percy Tzelnic

Kendell Alan Chilton

John T Fitzgerald

Yoav Raz

Kenneth A Halligan

Bruce Alan Pocock

Aviram Cohen

Daniel Lambright

Robert S Mason, Jr

Uresh K Vahalia

Gilad Sade

Mark C Lippitt

James M McGillis

Mark A Kaufman

William R Fairchild

Elizabeth C Patapoutian

Elizabeth E Patapoutian

David Lionel Black

Dan Arnon

Brian William Gallagher

Jeffrey Teachout

Stephen D MacArthur

Richard Wheeler

David Shadmon

Humberto Rodriguez

Daniel A Murphy

Ramprasad Shetty

Yeshayahu Hass

Robert Wilson

Tuvia Leneman

Moshe Schreiber

Ralph L Specht, Jr

Daniel P Murphy

Joseph Gerard Mettee, Jr

Bruno Altersecu

Daniel D Castel

Yuval Y Ofek

Establishing a plurality of storage areas includes associating each of a first plurality of storage areas of a first type that contain sections of data with corresponding ones of second plurality of storage areas of a second type having pointers to alternative sections of data storage areas of the first type, where initially none of the second plurality of storage areas is available for accessing data corresponding thereto, and, after associating all of the first and second plurality of storage areas, activating the second plurality of storage areas to make the second plurality of storage areas available for accessing data. Exclusive access may be enabled for all of the first plurality of storage areas prior to activating the second plurality of storage areas or to each storage area one at a time.

Simultaneous activation of virtual devices

This invention is a system and method for managing data in a secure manner in a data storage environment that is in communication with a network including an internet-based network. The system includes logic for securely managing internet client's access to data volumes stored on a data storage system, and may also include logic operating with a file server for providing dynamic access of data available to such clients in a secure fashion.

Method and system for securing network access to dynamically updateable data stored in a data storage system

A technique is directed to controlling speaker volume of a speaker of a portable communications device (e.g., a cellular telephone, a cordless hand phone, a combination of a cellular phone and a hands-free ear piece, etc.). The technique involves receiving an environmental signal from an environmental microphone of the portable communications device. The technique further involves identifying a level of environmental noise based on the environmental signal, and adjusting the speaker volume of the speaker of the portable communications device (e.g., ringer volume, voice output volume, etc.) based on the identified level of environmental noise. Such operation enables a user to accommodate a variety of settings without burdening the user with ongoing manual volume control of the portable communications device.

Techniques for controlling speaker volume of a portable communications device

This invention is a system and for managing data in a secure manner in a data storage environment that is in communication with a network including an internet-based network. The system includes computer-executable logic or software for securely managing internet client's access to data volumes stored on a data storage system, and may also include logic operating with a file server for providing dynamic access of data available to such client's in a secure fashion.

Method and system for securing network access to data stored in a data storage system

A computer display includes a screen, a workstation port configured to receive a workstation signal from a workstation controller, and a wireless port configured to receive an external signal from an external device. The external device is different than the workstation controller. The computer display further includes a display circuit coupled to the screen, the workstation port and the wireless port. The display circuit is configured to output (i) workstation information on the screen in response to the workstation signal from the workstation controller and (ii) external information on the screen in response to the external signal from the external device. Accordingly, the user is now capable of enjoying the image quality of a larger video display (e.g., a 15-inches, 17-inches, 19-inches, 21-inches, large projection screens, etc.).

Techniques for displaying information through a computer display

Handling data includes providing a first storage area of a first type that contains sections of data, providing a second storage area of the first type that contains sections of data, providing a third storage area of a second type where the second type has, for each section thereof, a pointer to one of: a corresponding section of data of the first storage area and a corresponding section of data of the second storage area, causing the third storage area to be not available for accessing, and after causing the third storage area to not be available for accessing, providing data from the second storage area corresponding to pointers of the third storage area that point to sections of the second storage area.

Deactivating virtual devices and rolling backup

Accessing stored data includes providing a virtual storage area having a table of pointers that point to sections of at least two other storage areas, where the virtual storage area contains no sections of data, in response to a request for accessing data of the virtual storage area, determining which particular one of the other storage areas contain the data, and accessing the data on the particular one of the other storage areas using the table of pointers. Accessing stored data may also include associating a first one of the other storage areas with the virtual storage area, where the virtual area device represents a copy of data of the first one of the other storage areas. Accessing stored data may also include causing all of the pointers of the table to initially point to sections of the first one of the other storage areas when the virtual storage area is initially associated with the first one of the other storage areas. The storage areas may be storage devices. The sections may be tracks.

Virtual storage devices

Restoring data includes providing data in a first storage area that contains sections of data, providing data in a second storage area where the second type has, for each section of data thereof, at least one of: a pointer to a corresponding section of data of the first storage area and a pointer to corresponding section of data of a third storage area of the first type. In one embodiment, a sections of the first storage area are replaced with pointers to the third storage area. In other embodiments, sections of a fourth storage area of the first type are replaced with pointers to the third storage area and optionally with pointers to the first storage area. In another embodiment, data is copied from the second storage area to a third storage area of the second type.

Restoring virtual devices

Accessing data includes a host establishing a relationship between a first storage area of a first type containing data and a second storage area of a second type containing pointers to data provided in storage areas of the first type, where the storage areas are provided in a storage device coupled to the host. In response to the host writing data to a particular section of the first storage area after establishing the relationship, the particular section is copied from the first storage area to a third storage area of the first type prior to the write operation being executed. A corresponding pointer of the second storage area is adjusted to point to the third storage area.

Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy-remote write pending, and adaptive copy-disk. Direct write access to a secondary volume is denied if a 'sync required' attribute is set for the volume and the volume is not synchronized.

Remote data mirroring

A digital data storage system in the form of a mass storage subsystem in which information is stored on one or more disk storage units, with a storage element constituting a track on a disk storage device and each track storing a plurality of records. Each track in each disk storage device of the digital data storage system is associated with a descriptor. When the control device retrieves the contents of a record, it can process the contents to generate a check value and compare the generated check value with the check value for the record as stored in the descriptor associated with the track. If they compare appropriately, the control device can determine that the record that was retrieved was, in fact, the record that was to be retrieved. On the other hand, if they do not compare appropriately, the control device can determine that the record that was retrieved was not the proper record. If the contents of the record are updated, the control device can update the check value in the descriptor to reflect the update of the record.

Digital data storage subsystem including directory for efficiently providing formatting information for stopped records and utilization of a check value for verifying that a record is from a particular storage location

A method and apparatus for manipulating data in a storage device that is coupled to a host computer. Manipulations that can be performed by the storage device include moving non-contiguous blocks of data between the host computer and the storage device in a single operation. Other manipulations can be performed directly by the storage device without passing data to or from the host computer and include copying data from one logical object that is defined on the host computer to another, initializing, backing-up, transforming, or securely deleting a logical object that is defined by the host computer with a single command. In one embodiment, an application programming interface is provided that allows a relationship between logical objects on a host computer and storage locations on a storage device to be communicated between the host computer and the storage device. By providing the storage device with knowledge of the relationship between a logical object and the storage locations corresponding to that logical object, data corresponding to the logical object can be manipulated directly by the storage device, rather than by the host computer. In another embodiment, a graphical visualization routine is provided that displays the global mapping of a logical object to a set of physical blocks on the storage device for each layer of mapping below the logical object.

Method and apparatus for initializing logical objects in a data storage system

A primary data storage system is linked to a geographically remote secondary data storage system for automatically maintaining a remote copy of the data in the primary storage. The primary data storage system has a primary cache memory, and the secondary data storage system has a secondary cache memory. The primary data storage system controller has a first remote link adapter coupled between the primary cache memory and the communications link for transferring the data to the communications link. The secondary data storage system controller has a second remote link adapter coupled between the communications link and the secondary cache memory for transferring the data from the communications link to the secondary cache memory. In this fashion, the first remote link adapter and the second remote link adapter automatically transfer the data to the secondary cache memory for writing of the data into the secondary data storage.

Remote data mirroring system having a remote link adapter

Two data storage systems are interconnected by a data link for remote mirroring of data. Each volume of data is configured as local, primary in a remotely mirrored volume pair, or secondary in a remotely mirrored volume pair. Normally, a host computer directly accesses either a local or a primary volume, and data written to a primary volume is automatically sent over the link to a corresponding secondary volume. Each remotely mirrored volume pair can operate in a selected synchronization mode including synchronous, semi-synchronous, adaptive copy&#x2014;remote write pending, and adaptive copy&#x2014;disk. Direct write access to a secondary volume is denied if a 'sync required' attribute is set for the volume and the volume is not synchronized.

A method for enabling a data processing system with a host running under an operating system and with a disk array storage device organized by logical devices to processes plural I/O requests from one or more host processors concurrently.

Method for enabling overlapped input/output requests to a logical device from multiple hosts with explicit allegiances

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Brookline, MA, United States of America

Natan Vishlitzky