Backup and restoration of computer information
a technology for computer information and backups, applied in the field of backups and restoration of computer information, can solve the problems of significant overhead, difficult to complete the reconstruction of a storage volume using incremental file backups, and the threat to the information contained in the computer and the network, so as to reduce the effect of downtim
Inactive Publication Date: 2012-09-20
STORAGECRAFT TECH CORP
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
This approach reduces downtime by allowing the restore process to occur while the backup is underway and maintains accurate multiple backup states, enabling faster and more efficient data recovery with minimal disruption to system operations.
Problems solved by technology
Computers and computer networks face a myriad of threats to the information they contain and to their smooth and continuous operation.
This file system backup procedure may be useful for finding and restoring a few lost or corrupted files, but it may include significant overhead in the form of bandwidth and logical overhead to store information about where each file exists within the file system.
In addition, complete reconstruction of a storage volume may be difficult using incremental file backups because files that have been deleted may be put back on the volume based on the contents of the incremental backups.
However, in practice, many disk image backup systems may utilize minimal knowledge of the file system in order to only backup blocks of data that are actually in use on the media, ignoring unused blocks.
In addition, retrieving files from the backup copy may be difficult or impossible without restoring the entire volume.
Finally, while the data transfer may be fast with block copies, every block with valid data must be copied, resulting in a relatively long process for large volumes (e.g., perhaps even days).
If a computer or server crashes or fails, or the software becomes corrupted, it may become necessary to restore the state of the server to some previously backed-up state.
Also, the process of restoring all the files of the server is time consuming.
With current data transfer rates over networks and from disks, restoring this much data may take hours, or even days.
Also, even an hour of downtime may be considered an extremely long time, particularly for many mission-critical applications.
For example, if the server in question is a web server that handles customer requests or sales, a period of 16-20 minutes of downtime can result in substantial lost sales.
Method used
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[0028]In the following description, elements, circuits, and functions may be shown in block diagram form in order not to obscure the present invention in unnecessary detail. Conversely, specific implementations shown and described are exemplary only and should not be construed as the only way to implement the present invention unless specified otherwise herein. Additionally, block definitions and partitioning of logic between various blocks is exemplary of a specific implementation. It will be readily apparent to one of ordinary skill in the art that the present invention may be practiced by numerous other partitioning solutions. For the most part, details concerning timing considerations, and the like, have been omitted where such details are not necessary to obtain a complete understanding of the present invention and are within the abilities of persons of ordinary skill in the relevant art.
[0029]Furthermore, in this description of embodiments of the invention, reference is made t...
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Backup and restoration of computer information. In one example embodiment, a method includes modifying a volume boot record of a restore volume to a first state in which at least a portion of the restore volume becomes inaccessible to a standard file system, writing restore data to the inaccessible portion of the restore volume while the volume boot record is in the first state, and restoring the volume boot record to a second state in which the inaccessible portion of the restore volume becomes accessible to the standard file system.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of U.S. patent application Ser. No. 12 / 716,043, filed Mar. 2, 2010, titled SYSTEMS, METHODS, AND COMPUTER-READABLE MEDIA FOR BACKUP AND RESTORATION OF COMPUTER INFORMATION, issuing on May 29, 2012 as U.S. Pat. No. 8,190,574, which is incorporated herein by reference in its entirety.TECHNICAL FIELD[0002]The present invention relates to developing, maintaining, and restoring backups of computer information.BACKGROUND[0003]Computers and computer networks face a myriad of threats to the information they contain and to their smooth and continuous operation. Backup systems and methods have been proposed for maintaining snapshots of information on a computer or a computer system at any given time. With a backup, if the computer system experiences some type of corruption of its stored information the state of the computer can be restored to the point in time when the backup was made.[0004]Computer systems typicall...
Claims
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IPC IPC(8): G06F17/30
CPCG06F17/30079G06F2201/84G06F11/1469G06F11/1451G06F3/0617G06F3/0619G06F3/0632G06F3/0644G06F3/065G06F3/067G06F11/1004G06F11/1464G06F11/1466G06F16/119
InventorBARNES, SCOTTBUSHMAN, NATHAN S.
OwnerSTORAGECRAFT TECH CORP