PATENT CLAIM ANALYSIS

Application Number: 15964977
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["711", "162000"]

Abstract:
A system and method are presented that reduce the use of snapshot space. One embodiment of the present invention only performs snapshot copies for blocks on the source volume that have not yet been backed up. Another embodiment stores the data in the snapshot space in multiple files, and then deletes those files that contain data whose corresponding blocks have been backed up. A third embodiment stores the data in the snapshot space directly onto a dedicated device and then reuses the data blocks for data already backed up when the dedicated device is full.

Claim (Index 1):
A method for performing copy-on-write snapshot management during a block-level backup of a source volume comprising:\n a) establishing a snapshot of data found on the source volume; b) sequentially performing the block-level backup of the snapshot of the source volume while maintaining a backup offset location identifying a location in the snapshot currently being backed up; c) receiving a first write request to write a first data element to the source volume at a first offset that is not smaller than the backup offset location; d) copying the data found on the source volume at the first offset to a snapshot space; e) after step d) writing the first data element to the source volume at the first offset; f) receiving a second write request to write a second data element to the source volume at a second offset that is smaller than the backup offset location; and g) writing the second data element to the source volume at the second offset without first copying the data found on the source volume at the second offset to the snapshot space.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 1.78571
- Patent Class: 711.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11382851', '10925928', '10624858', '11960488', '12877186']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5350135275320306
- 35 USC 102 Novelty (BERT): 0.4955164948893344
- Combined Prediction Score: 0.531063824267761
- Mean Citation Score: 236.509402
- Max Citation Score: 246.79933
- Similarity Product: 177.00771112429317

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test