BLOCK LEVEL BACKUP AND RESTORE
1 Assignment
0 Petitions
Accused Products
Abstract
For block level backup, a full image level backup is created of a file system from production storage at a production server to random access storage at a backup server. A mounted image is created from the full image that exposes a block level representation of the file system of the production server for read operations in a file level format. File enumeration is performed on the mounted image for files. Block level read operations are monitored while the files are being enumerated. During monitoring, blocks that are read for the read operations are marked as meta-data blocks. Blocks that are not marked as meta-data blocks are identified as data blocks. The data blocks are migrated to sequential storage, while leaving the meta-data blocks on the random access storage, wherein the data blocks form a backup image.
3 Citations
21 Claims
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1-7. -7. (canceled)
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8. A computer program product for block level backup, the computer program product comprising:
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a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising; computer readable program code, when executed by a processor of a backup server, configured to perform; creating a full image level backup of a file system from production storage at a production server to random access storage at the backup server; performing file enumeration on a mounted image created from the full image that exposes a block level representation of the file system for files; monitoring block level read operations that reference meta-data blocks while the files are being enumerated; during monitoring of the block level read operations, marking blocks that are read for the read operations as the meta-data blocks; identifying blocks that are not marked as meta-data blocks as data blocks; and migrating the data blocks to sequential storage, while leaving the meta-data blocks on the random access storage, wherein the data blocks form a backup image. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A backup server for block level backup, comprising:
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a processor; a storage device coupled to the processor; a random access storage device coupled to the backup server; a sequential storage device coupled to the backup server; wherein the storage device has stored thereon a program, and wherein the processor is configured to execute instructions of the program to perform operations, wherein the operations comprise; creating a full image level backup of a file system from a production storage device at a production server to the random access storage device at the backup server; performing file enumeration on a mounted image created from the full image that exposes a block level representation of the file system for files; monitoring block level read operations that reference meta-data blocks while the files are being enumerated; during monitoring of the block level read operations, marking blocks that are read for the read operations as the meta-data blocks; identifying blocks that are not marked as meta-data blocks as data blocks; and migrating the data blocks to the sequential storage device, while leaving the meta-data blocks on the random access storage device, wherein the data blocks form a backup image. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification