A disk drive system and method capable of dynamically allocating data is provided. The disk drive system may include a RAID subsystem having a pool of storage, for example a page pool of storage that maintains a free list of RAIDs, or a matrix of disk storage blocks that maintain a null list of RAIDs, and a disk manager having at least one disk storage system controller. The RAID subsystem and disk manager dynamically allocate data across the pool of storage and a plurality of disk drives based on RAID-to-disk mapping. The RAID subsystem and disk manager determine whether additional disk drives are required, and a notification is sent if the additional disk drives are required. Dynamic data allocation and data progression allow a user to acquire a disk drive later in time when it is needed. Dynamic data allocation also allows efficient data storage of snapshots/point-in-time copies of virtual volume pool of storage, instant data replay and data instant fusion for data backup, recovery etc., remote data storage, and data progression, etc.

Virtual disk drive system and method

The invention provides systems and methods for continuous back up of data stored on a computer network. To this end the systems of the invention include a synchronization process that replicates selected source data files data stored on the network and to create a corresponding set of replicated data files, called the target data files, that are stored on a back up server. This synchronization process builds a baseline data structure of target data files. In parallel to this synchronization process, the system includes a dynamic replication process that includes a plurality of agents, each of which monitors a portion of the source data files to detect and capture, at the byte-level, changes to the source data files. Each agent may record the changes to a respective journal file, and as the dynamic replication process detects that the journal files contain data, the journal files are transferred or copied to the back up server so that the captured changes can be written to the appropriate ones of the target data files.

Systems and methods for backing up data files

A data transmission system is disclosed which optimizes transfer and updates of information between systems by providing difference information between the systems. The system transmits data packages having instructions for manipulating user data. The data packages include a header identifying the respective packages, as well as transaction objects for effecting a change to user data on a device having object instructions.

Data transfer and synchronization system

An apparatus comprising a deformable lens element can be provided wherein a deformable lens element can be deformed to change an optical property thereof by the impartation of a force to the deformable lens element.

Apparatus and method comprising deformable lens element

Systems and methods are described for obtaining and acting upon information indicative of circulatory health and related phenomena in human beings or other subjects.

Circulatory monitoring systems and methods

The present invention relates to apparatus for determining the position of a machine recognisable character (14, 17) on a body comprising means for scanning over an area of the body expected to contain the character, a detector for detecting objects in the area and deriving data signals relating thereto, and an analyser for obtaining from the data signals information relating to the position of the character. According to the invention the apparatus is characterised in that the detector comprises means for detecting the presence in the scanned area of a first reference object (121, 221, 321), the analyser comprises means for determining the position within the first reference object of a first reference point (T, UR, UL), the detector comprises means for detecting the presence in the scanned area of a second reference object (122, 222, 322), the analyser comprises means for determining the position within the second reference object of a second reference point (B, LR, LL), and the analyser also comprises means for determining from the positions of the first and second reference points the position (16, 18) of the character.

Apparatus and method for determining the position of a character on a body

A media server (e.g., a virtual tape server) implements a method for a dynamic media format conversion of physical volumes stored within a media library (e.g., a tape library). The method involves a recall of volume data in a media format f as stored in one or more source physical volumes of a source media, and an automatic premigration of the recalled volume data in a media format f to one or more target physical volumes of a target media. The media format f is different in one or more aspects from the media format f.

Dynamic media format conversion of physical volumes

A collision is avoided between a new Flashcopy backup and an existing Flashcopy target volume containing an older Flashcopy backup being ingested during one of a mount operation, a restore operation, and a clone operation by dynamically allocating a new Flashcopy target volume for the new Flashcopy backup.

Collision avoidance using dynamic target volume allocation

An apparatus for data replication is disclosed. A method and computer program product also perform the functions of the apparatus. In one embodiment, an apparatus includes a replication module configured for replicating, in response to a determination that a received object corresponds to a storage policy, the received object to a data storage node. The apparatus also includes a tagging module configured for marking the received object with a file attribute indicative of the received object being excluded from migration to a cold storage device during the replicating, and removing the file attribute after the replicating. The apparatus may also include a migration module configured for migrating, in response to a determination that the file attribute has been removed, the received object to the cold storage device.

Cold storage aware object replication

Systems and methods include: receiving input at a storage system managing a storage device in which a tree-based data structure is stored, the input identifying a set of heterogeneous operations to be applied to the tree-based data structure; determining one or more nodes of the tree-based data structure to which one or more of the set of heterogeneous operations are to be applied; determining one or more groups of the set of heterogeneous operations, the determining being based at least in part on the one or more nodes to which the heterogeneous operations are to be applied; isolating processing of each node from processing of other nodes; and processing each of the one or more nodes to which one or more of the set of heterogeneous operations are to be applied with one of the groups of the set of heterogeneous operations.

Gregory Tad Kishi

Papers

Apparatus and method for determining the position of a character on a body

Dynamic media format conversion of physical volumes

Collision avoidance using dynamic target volume allocation

Cold storage aware object replication

Isolation of concurrent operations on tree-based data structures