BLOCK LEVEL BACKUP AND RESTORE
First Claim
1. A method for block level backup, comprising:
- creating, using a processor of a backup server, 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 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.
0 Assignments
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.
-
Citations
8 Claims
-
1. A method for block level backup, comprising:
-
creating, using a processor of a backup server, 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 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 (2, 3, 4, 5, 6, 7)
-
-
8-20. -20. (canceled)
Specification