IP Library Granted Patent US 10,409,520
Granted Patent B1
US 10,409,520 · App. 15/499,226 · Granted Sep 10, 2019

Replication of content-based storage using address space slices

Inventors: David Meiri (Somerville, MA); William Stronge (Westford, MA)
Assignee: EMC IP HOLDING COMPANY LLC
G06F3/065G06F3/067G06F3/0619
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Quick Facts
Patent No.
US 10,409,520
App. No.
15/499,226
Granted
Sep 10, 2019
Kind
B1
Abstract

A computer program product, system, and method for determining one or more slices of a logical address space assigned to replication processor; determining an elapsed time since a start of a replication cycle; determining an expected number of slices that should have been replicated based on the elapsed time; and replicating one or more slices of the logical address space in response to determining the expected number of slices that should have been replicated is less than an actual number of slices replicated by the replication processor within the replication cycle.

Claims (27)

1. A method comprising:

determining one or more slices of a logical address space assigned to a replication processor;

determining an elapsed time since a start of a replication cycle;

determining an expected number of slices that should have been replicated based on the elapsed time; and

replicating one or more slices of the logical address space in response to determining the expected number of slices that should have been replicated is more than an actual number of slices replicated by the replication processor within the replication cycle.

2. The method of claim 1 wherein determining an expected number of slices that should have been replicated is further based on a recovery point objective (RPO) and a number of slices of the logical address space assigned to the replication processor.

3. The method of claim 1 wherein determining an expected number of slices that should have been replicated is further based upon an acceleration factor.

4. The method of claim 1 further comprising assigning each slice of a logical address space to one of a plurality of replication processors.

5. A system comprising:

a processor;

a volatile memory; and

a non-volatile memory storing computer program code that when executed on the processor causes the processor to execute a process operable to:

determine one or more slices of a logical address space assigned to a replication processor;

determine an elapsed time since a start of a replication cycle;

determine an expected number of slices that should have been replicated based on the elapsed time; and

replicate one or more slices of the logical address space in response to determining the expected number of slices that should have been replicated is more than an actual number of slices replicated by the replication processor within the replication cycle.

6. The system of claim 5 wherein determining an expected number of slices that should have been replicated is further based on a recovery point objective (RPO) and a number of slices of the logical address space assigned to the replication processor.

7. The system of claim 5 wherein determining an expected number of slices that should have been replicated is further based upon an acceleration factor.

8. The system of claim 5 wherein the process is further operable to assign each slice of a logical address space to one of a plurality of replication processors.

9. A computer program product tangibly embodied in a non-transitory computer-readable medium, the computer-readable medium storing program instructions that are executable to:

determine one or more slices of a logical address space assigned to a replication processor;

determine an elapsed time since a start of a replication cycle;

determine an expected number of slices that should have been replicated based on the elapsed time; and

replicate one or more slices of the logical address space in response to determining the expected number of slices that should have been replicated is more than an actual number of slices replicated by the replication processor within the replication cycle.

10. The computer program product of claim 9 wherein determining an expected number of slices that should have been replicated is further based on a recovery point objective (RPO) and a number of slices of the logical address space assigned to the replication processor.

11. The computer program product of claim 9 wherein determining an expected number of slices that should have been replicated is further based upon an acceleration factor.

12. The computer program product of claim 9 wherein the instructions are further executable to assign each slice of a logical address space to one of a plurality of replication processors.

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 (042769/0001) Recorded Apr 26, 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 (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO WYSE TECHNOLOGY L.L.C.)
Reel/Frame 059803/0802 →
RELEASE OF SECURITY INTEREST AT REEL 042768 FRAME 0585 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; MOZY, INC.; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058297/0536 →
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 INTEREST (CREDIT) Recorded Jun 12, 2017
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; MOZY, INC.; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 042768/0585 →
PATENT SECURITY INTEREST (NOTES) Recorded Jun 12, 2017
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; MOZY, INC.; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 042769/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2017
From: MEIRI, DAVID; STRONGE, WILLIAM
To: EMC IP HOLDING COMPANY LLC
Reel/Frame 042192/0211 →