IP Library › Granted Patent US 9,933,961
Granted Patent B1
US 9,933,961 · App. 15/280,966 · Granted Apr 3, 2018

Method to improve the read performance in a deduplicated storage system

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Quick Facts
Patent No.
US 9,933,961
App. No.
15/280,966
Granted
Apr 3, 2018
Kind
B1
Abstract

A method, article of manufacture, and apparatus for backup operations. A read request is received for a data segment at a deduplicated storage system. The data segment is determined not to be in a data cache on the deduplicated storage system. A data segment reference for the data segment is determined to be in a data segment reference cache on the deduplicated storage system. The data segment is read from a persistent storage using the data segment reference.

Claims (15)

1. A method for optimizing backups, the method comprising:

receiving a read request for a data segment at a deduplicated storage system;

determining the data segment is not in a data cache on the deduplicated storage system;

determining a data segment reference for the data segment is in a data segment reference cache on the deduplicated storage system; and

reading the data segment from a persistent storage using the data segment reference.

2. A computer program product for optimizing backups, the computer program product comprising a non-transitory computer readable medium encoded with computer executable program, the code enabling:

receiving a read request for a data segment at a deduplicated storage system;

determining the data segment is not in a data cache on the deduplicated storage system;

determining a data segment reference for the data segment is in a data segment reference cache on the deduplicated storage system; and

reading the data segment from a persistent storage using the data segment reference.

3. A system for optimizing backups, the system comprising a computer processor configured to execute instructions comprising:

receiving a read request for a data segment at a deduplicated storage system;

determining the data segment is not in a data cache on the deduplicated storage system;

determining a data segment reference for the data segment is in a data segment reference cache on the deduplicated storage system; and

reading the data segment from a persistent storage using the data segment reference.

Assignments (8)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (046366/0014) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 060450/0306 →
RELEASE OF SECURITY INTEREST AT REEL 046286 FRAME 0653 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 058298/0093 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Jun 1, 2018
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 046366/0014 →
PATENT SECURITY AGREEMENT (CREDIT) Recorded Jun 1, 2018
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 046286/0653 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2016
From: VISVANATHAN, SATISH; GARAI, DEBASISH; ALLU, YAMINI; SUBRAMANIAN, BALAJI
To: EMC IP HOLDING COMPANY LLC
Reel/Frame 040534/0403 →