International Business Machines Corporation

Ernesto E Figueroa

Jeffrey Richard Suarez

Robert Stanley Gensler, Jr

David Michael Shackelford

Christopher J Miller

Albert E Dennes

Thomas T Jesukaitis

Zaid M Alattar

A storage controller receives a command from a host application to perform a point-in-time backup of a source dataset to a storage cloud. The storage controller generates a target dataset via a point-in-time copy of the source dataset, and a mapping that indicates a correspondence between locations of the source dataset and locations of the target dataset. The storage controller copies the target dataset to the storage cloud to generate a backup dataset that is the point-in-time backup of the source dataset, wherein the backup dataset is accessible via reference to the locations of the source dataset.

Point-in-time backups via a storage controller to an object storage cloud

Provided are a computer program product, system, and method for accessing records of a backup file in a network storage. A backup file comprises a sequential file of metadata records and data set records is processed. The metadata records include metadata on data of data sets in the data set records. Backup objects store the metadata and the data set records in the backup file. A determination is made of at least one container in the network storage to store the backup objects. Backup object information indicates for each of the backup objects, an order of the metadata or data set record, stored in the backup object, in the backup file, and a container of the at least one container in which the backup object is stored. Multiple of the backup objects are concurrently transmitted to the network storage to concurrently write to the at least one container.

Accessing records of a backup file in a network storage

Provided are a computer program product, system, and method for serializing access to data objects in a logical entity group in a network storage. Data objects associated with a logical entity at a client storage are generated. A determination is made of a prefix for a container in the network storage associated with the logical entity. The prefix is included in names of the data objects in the logical entity. The prefix is added to a lock queue shared by the client systems having access to the data objects in the container at the network storage. The data objects having the names including the prefix are transmitted to the network storage to store in the container in the network storage.

Serializing access to data objects in a logical entity group in a network storage

Provided are a computer program product, system, and method for providing integrity for data sets backed-up from client systems to objects in a network storage. Data set objects include data sets at a client storage and an inventory object has information on each of the data set objects, which are part of a backup object group to backup to the network storage. The data set and inventory objects in the backup object group are transferred to the network storage to store. The inventory object from the network storage is retrieved to select at least one of the data set objects in the network storage, which is requested. Notification is received that the backup object group has a data integrity error in response to one of the requested data set objects not located in the network storage.

Providing integrity for data sets backed-up from client systems to objects in a network storage

A method is provided for performing a point in time copy using a block level of granularity. The method includes identifying an index node for a file, and translating data block locations identified by the index node to physical track locations. Further, the method includes performing a point in time copy utilizing the physical track locations.

Point in time copy technique using a block level of granularity

Various embodiments for logging traffic collision data at a traffic signal, by a processor device, are provided. In one embodiment, a method comprises recording a media loop of a predetermined time and an associated traffic light sequence by a recording device placed in substantially close proximity to a traffic signal; and upon registering a media event above a predetermined threshold level, saving instant media loop information and the associated traffic light sequence to a storage device for aiding in determining fault in a traffic accident.

Traffic signal collision data logger

A method and apparatus for determining a rotational orientation of an object is provided. Embodiments of the present invention utilize an electrically conductive fluid enclosed within a shell attached to the object such that the conductive fluid contacts different portions of electrically conductive nodes, located on the inner wall of the shell, depending on the rotational orientation of the shell. The electrically activated nodes in contact with the conductive fluid act as sensors and individually transmit electric signals to a microcontroller for transformation into an indicator of a rotational orientation of the object. The indicator of the rotational orientation is then output.

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Sahuarita, AZ, United States of America

Ernesto E Figueroa