PATENT CLAIM ANALYSIS

Application Number: 16123738
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-08
Patent Classification: ["710", "068000"]

Abstract:
A storage apparatus and method of controlling same which, while preventing depletion of a storage area due to the generation of garbage, also prevent a drop in response performance from the perspective of the host, are proposed. One or more storage devices which constitute a pool, and a controller which manages a log-structured write space which is a virtual logical space, compresses data of a compression target among the data which has been written to the virtual volume by the host and logs the data in the log-structured write space, and writes the post-compression data which has been logged in the log-structured write space to the storage device, are provided in a storage apparatus, the controller restricting reception of a write request from the host when a used capacity of the pool is at or above a threshold; when the data logged in the log-structured write space has been updated, the controller determines whether a predetermined condition is satisfied and, when the predetermined condition is satisfied, the controller overwrites the compressed data of the pre-update data which has been logged in the log-structured write space with the compressed data of the post-update data.

Claim (Index 4):
The storage apparatus according to  claim 3 ,\n wherein a portion of the storage devices comprises a compression function for compressing stored data and storing and holding same, and wherein the data which is stored in the storage device is supplied from the virtual volume to the storage device without being compressed and logged in the log-structured write space.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 97.0
- Lexical Diversity: 2.49398
- Patent Class: 710.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15759842', '15557967', '13611100', '14762955', '12310107']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7107058298552871
- 35 USC 102 Novelty (BERT): 0.5004922179052274
- Combined Prediction Score: 0.6896844686602811
- Mean Citation Score: 237.27214
- Max Citation Score: 272.0548
- Similarity Product: 203.3490288715601

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test