PATENT CLAIM ANALYSIS

Application Number: 15954720
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["711", "100000"]

Abstract:
Embodiments of the present disclosure provide a method for establishing a multi-tier flash cache using spare drives. In some embodiments, there is provided a computer-implemented method, comprising: in response to receiving an I/O request, determining whether there is a free page in a main cache; in response to determining that there is no free page in the main cache, establishing a secondary cache by selecting at least one spare drive from spare drives; flushing data from a cold page in the main cache to the secondary cache, an access frequency of the cold page being lower than a predetermined threshold; and writing data related to the I/O request from a persistent storage device to the cold page.

Claim (Index 17):
A computer-readable medium having instructions stored with thereon which, when executed by at least one processing unit, causing the at least processing unit to be configured to execute a method, the method comprising:\n in response to determining that there is no free page in the main cache, establishing a secondary cache by selecting at least one spare drives from spare drive in a storage pool; flushing data from a cold page in the main cache to the secondary cache, an access frequency of the cold page being lower than a predetermined threshold; and writing data related to the I/O request from a persistent storage device to the cold page.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 91.0
- Lexical Diversity: 1.93939
- Patent Class: 711.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15236171', '14746869', '15086390', '13225912', '14085195']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4962475544272476
- 35 USC 102 Novelty (BERT): 0.473373808966574
- Combined Prediction Score: 0.4939601798811802
- Mean Citation Score: 158.86250800000005
- Max Citation Score: 168.85732
- Similarity Product: 122.4169715315294

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

Dataset: test