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US 6,662,281 B2Granted
Redundant backup device
AssigneeHewlett-Packard Development Company, L.P.
InventorsCurtis C. Ballard, William Wesley Torrey, Michael J. Chaloner
Life of this patent
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Abstract
The present disclosure relates to a redundant back up device. Through use of the device, a method for backing up information can be performed that comprises the steps of transmitting data to be backed up to a primary backup device and to the redundant backup device, writing the transmitted data to a writing medium contained within a writing device of the primary backup device, and simultaneous to the step of writing the transmitted data to the writing medium of the primary backup device, caching the transmitted data in a data storage device of the redundant backup device. By caching the transmitted data in this manner, the data can be rewritten to the writing medium should a failure occur.
Claims46
A method for backing up information, comprising:
- transmitting data to be backed up to a primary backup device and a redundant backup device;
- writing the transmitted data to a first writing medium contained within a writing device of the primary backup device;
- substantially simultaneous to the step of writing the transmitted data to the first writing medium of the primary backup device, caching the transmitted data in a data storage device of the redundant backup device;
- interrupting transmission of data to the first writing device upon a backup operation failure;
- automatically replacing the first writing medium with a new writing medium;
- and
- transmitting the data previously written to the first writing medium to the new writing medium from the data storage device of the redundant storage device.
4 more elements
A method for backing up information, comprising:
- transmitting data to be backed up to a primary backup device and a redundant backup device;
- writing the transmitted data to a writing medium contained within a writing device of the primary backup device;
- substantially simultaneous to the step of writing the transmitted data to the writing medium of the primary backup device, caching the transmitted data in a data storage device of the redundant backup device;
- interrupting transmission of data to the writing device upon a backup operation failure;
- automatically removing the writing medium;
- cleaning the writing device;
- automatically replacing the writing medium;
- and
- resuming the transmission of data to the primary backup device.
6 more elements
A method for backing up information, comprising:
- transmitting data to be backed up to a primary backup device and a redundant backup device;
- writing the transmitted data to a writing medium contained within a writing device of the primary backup device;
- substantially simultaneous to the step of writing the transmitted data to the writing medium of the primary backup device, caching the transmitted data in a data storage device of the redundant backup device;
- interrupting transmission of data to the writing device upon a backup operation failure;
- automatically removing the writing medium from the writing device;
- automatically placing the writing medium in an auxiliary writing device;
- and
- transmitting data to the writing medium that was cached by the data storage device of the redundant backup device while the writing medium was being moved to the auxiliary writing device.
5 more elements
A system for backing up information, comprising:
- means for transmitting data to be backed up to a primary backup device and a redundant backup device;
- means for writing the transmitted data to a first writing medium contained within a writing device of the primary backup device;
- means for caching the transmitted data in a data storage device of the redundant backup device simultaneous to writing the transmitted data to the first writing medium of the primary backup device;
- means for interrupting transmission of data to the writing device;
- means for automatically replacing the first writing medium with a new writing medium;
- and
- means for transmitting the data previously written to the first writing medium to the new writing medium from the data storage device of the redundant storage device.
4 more elements
A system for backing up information, comprising:
- means for transmitting data to be backed up to a primary backup device and a redundant backup device;
- means for writing the transmitted data to a writing medium contained within a writing device of the primary backup device;
- means for caching the transmitted data in a data storage device of the redundant backup device simultaneous to writing the transmitted data to the writing medium of the primary backup device;
- means for interrupting transmission of data to the writing device;
- means for automatically removing the writing medium;
- means for cleaning the writing device;
- means for automatically replacing the writing medium;
- and
- means for resuming the transmission of data to the primary backup device.
6 more elements
A system for backing up information, comprising:
- means for transmitting data to be backed up to a primary backup device and a redundant backup device;
- means for writing the transmitted data to a writing medium contained within a writing device of the primary backup device;
- means for caching the transmitted data in a data storage device of the redundant backup device simultaneous to writing the transmitted data to the writing medium of the primary backup device;
- means for interrupting transmission of data to the writing device;
- means for automatically removing the writing medium from the writing device;
- means for automatically placing the writing medium in an auxiliary writing device;
- and
- means for transmitting data to the writing medium that was cached by the data storage device of the redundant backup device while the writing medium was being moved to the auxiliary writing device.
5 more elements
A system for backing up information, comprising:
- logic configured to transmit data to be backed up to a primary backup device and a redundant backup device;
- logic configured to write the transmitted data to a writing medium contained within a writing device of the primary backup device;
- logic configured to cache the transmitted data in a data storage device of the redundant backup device simultaneous to writing the transmitted data to the writing medium of the primary backup device such that all data written to the writing medium of the primary backup device is cached in the data storage device of the redundant backup device;
- logic configured to interrupt transmission of data to the writing device upon backup operation failure;
- logic configured to facilitate remedying of a problem that caused the failure;
- and
- logic configured to transmit data previously written to the writing medium.
4 more elements
A backup system for backing up data, comprising:
- a backup server;
- a primary backup device comprising a writing device that contains a writing medium;
- a data bus that links the backup server to the writing device;
- and
- a redundant backup device connected to the backup server and the writing device of the primary backup device via the data bus, the backup device having a data storage device that caches data transmitted from the backup server to the writing device and a bus listening device that controls the data storage device and with which the redundant backup device can receive all data and messages transmitted along the data bus between the backup server and the writing device.
2 more elements
A backup system for backing up data, comprising:
- a backup server;
- a primary backup device comprising a writing device that contains a writing medium;
- and
- a redundant backup device connected to the backup server and the writing device of the primary backup device, the backup device having a data storage device that caches data transmitted from the backup server to the writing device and a data directing device that controls the data storage device, wherein the data directing device is provided between the backup server and the primary backup device such that communications from the backup server are intercepted by the data directing device.
1 more element
Dependencies are inferred from the claim text.