IP Library › Granted Patent US 8,935,498
Granted Patent B1
US 8,935,498 · App. 13/248,939 · Granted Jan 13, 2015

Splitter based hot migration

Inventor: Assaf Natanzon (Ramat-Gan, IL)
Assignee: EMC Corporation
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Quick Facts
Patent No.
US 8,935,498
App. No.
13/248,939
Filed
Sep 29, 2011
Granted
Jan 13, 2015
Kind
B1
Art Unit
2138
USPC
711/165
Abstract

A system, method, and computer program product for intercepting Input/Outputs (IOs) sent to a second storage medium in a storage array via a splitter in the storage array, redirecting read IOs to a first storage medium, and redirecting writes to the first storage medium and a Data Protection appliance.

Claims (52)

1. A system for data migration, the system comprising:

a splitter;

a data protection appliance (DPA)

a journal;

a first storage medium;

a storage array having a second storage medium and a splitter; and

computer-executable logic operating in memory, wherein the computer-executable program logic is configured for execution of:

intercepting Input/Outputs (IOs) to the second storage medium at the splitter;

redirecting read IOs to the first storage medium; and

redirecting writes to the first storage medium and the DPA.

2. The system of claim 1 wherein the computer executable logic is further configured for the execution of:

configuring a host to write data to the second storage medium; and

copying the data from the first storage medium to the second storage medium while the second storage medium is enabled to actively receive Input/Output (IO).

3. The system of claim 2 wherein the computer executable logic is further configured for the execution of:

reducing lag between the first storage medium and the second storage medium; wherein the lag corresponds to the data to be copied from the first storage medium to the second storage medium.

4. The system of claim 3 wherein the computer executable logic is further configured for the execution of:

determining whether to use the first storage medium as a mirror for the second storage medium.

5. The system of claim 3 wherein the computer executable logic is further configured for the execution of:

creating a notification when all of the data on the first storage medium is copies to the second storage medium.

6. The system of claim 3 wherein the computer executable logic is further configured for the execution of:

changing direction of the replication between the first and second storage mediums.

7. A computer implemented method for data replication, the method comprising:

intercepting Input/Outputs (IOs) sent to a second storage medium in a storage array via a splitter in the storage array; wherein the storage medium is mapped to a physical storage medium enabled to store data;

redirecting read IOs to a first storage medium; and

redirecting writes to the first storage medium and a Data Protection appliance.

8. The computer implemented method of claim 7 wherein the method further comprising:

configuring a host to write data to the second storage medium; and

copying the data from the first storage medium to the second storage medium while the second storage medium is enabled to actively receive Input/Outputs (IO).

9. The computer implemented method of claim 8 wherein the method further comprising:

reducing lag between the first storage medium and the second storage medium; wherein the lag corresponds to the data to be copied from the first storage medium to the second storage medium.

10. The computer implemented method of claim 9 wherein the method further comprising:

determining whether to use the first storage medium as a mirror for the second storage medium.

11. The computer implemented method of claim 9 wherein the method further comprising:

creating a notification when all of the data on the first storage medium is copied to the second storage medium.

12. The computer implemented method of claim 9 wherein the method further comprising:

changing direction of the replication between the first and second storage mediums.

13. A computer program product for use in replication comprising:

a non-transitory computer readable medium encoded with computer executable program code for migration of data, the code configured to enable the execution of:

intercepting Input/Outputs (IOs) sent to a second storage medium in a storage array via a splitter in the storage array;

redirecting read IOs to a first storage medium; and

redirecting writes to the first storage medium and a Data Protection appliance.

14. The program product of claim 13 wherein the executable program code is further configured for execution of:

configuring a host to write data to the second storage medium; and

copying the data from the first storage medium to the second storage medium while the second storage medium is enabled to actively receive Input/Outputs (IO).

15. The program product of claim 13 wherein the executable program code is further configured for execution of:

reducing the lag between the first storage medium and the second storage medium; wherein the lag corresponds to the data to be copied from the first storage medium to the second storage medium.

16. The program product of claim 13 wherein the executable program code is further configured for execution of:

determining whether to use the first storage medium as a mirror for the second storage medium.

17. The program product of claim 13 wherein the executable program code is further configured for execution of:

creating a notification when all of the data on the first storage medium is copied to the second storage medium.

18. The program product of claim 13 wherein the executable program code is further configured for execution of:

changing direction of the replication between the first and second storage mediums.

Assignments (11)
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 (045455/0001) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061753/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (040136/0001) Recorded Apr 26, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061324/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL, L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058216/0001 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2016
From: EMC CORPORATION
To: EMC IP HOLDING COMPANY LLC
Reel/Frame 040203/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 040136/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 040134/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2013
From: EMC INTERNATIONAL COMPANY
To: EMC CORPORATION
Reel/Frame 030847/0412 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2013
From: NATANZON, ASSAF
To: EMC INTERNATIONAL COMPANY
Reel/Frame 030479/0841 →