Information storage system with increased reliability for continuous operation, and a recording control method
AssigneeHitachi, Ltd.
InventorHideaki Tanaka
Life of this patent
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Abstract
The present invention increases reliability for continuous operation for an information storage device having a function of recording inputted information continuously. An information storage device has a plurality of recording device groups. The information storage device controls recording so that inputted information is sequentially recorded on each device, and changes states of the recording device groups other than the current device to stopped states. This permits operation time of each recording device to be decreased, which ensures reliability of the information storage device for continuous operation.
Claims26
A method of storing information in a data storage system for continuous recording comprising a plurality of storage devices, each of which includes both a temporary storage area and an ordinary recording area, the method comprising:
- receiving said information;
- writing a first part of said information to a temporary storage area of a first storage device among said storage devices;
- during said writing to said first storage device, placing a second storage device among said storage devices in said plurality of storage devices in a state where it is ready to record a second part of said information;
- writing said second part of said information to a temporary storage area of said second storage device, including ceasing writing of said first part of said information to said first storage device;
- and
- subsequent to commencement of writing said second part of said information to said second storage device, placing said first storage device in a stopped state,
- whereby said information is continuously recorded to said temporary storage areas.
An information storage system for continuous recording comprising:
- a plurality of storage devices, each of which includes both a temporary storage area and an ordinary recording area;
- and
- a controller operatively coupled to said storage devices and configured to record information on said storage devices,
- said controller configured to perform first write operations on a first part of said information to a temporary area of a first storage device of said storage devices,
- said controller configured to perform second write operations of a second part of said information to a temporary area of a second storage device of said storage devices, including, during said first write operations, placing said second storage device in a state where it is ready to record information,
- said controller further configured to cease said first writing operations upon commencing said second write operations,
- said controller further configured to place said first storage device in a stopped state after commencing said second write operations, said stopped state,
- whereby said information is continuously recorded to said temporary storage areas.
An audio-visual information storage system comprising:
- a plurality of storage devices;
- and
- a controller operatively coupled to said storage devices,
- said controller configured to receive audio-visual information containing audio content, visual content, or audio-visual content to be stored in said storage devices,
- said controller configured to perform first write operations of said audio-visual information to a first of said storage devices,
- said controller configured to perform second write operations of said audio-visual information to a second of said storage devices, including, during said first write operations, placing said second storage device in a state ready to record said audio-visual information,
- said controller configured to place said first storage device in a stopped state subsequent to commencement of said second write operations,
- said controller configured to read out audio-visual information contained in one of said storage devices during said first or second writing operations, including placing said one of said storage devices in a state so that said audio-visual information can be read therefrom,
- said storage devices further including a third storage device that is separate from said plurality of storage devices, said controller further configured to write said audio-visual information to said third storage device, said audio-visual information being said information to be recorded or information copied from said storage devices.
Dependencies are inferred from the claim text.