Initial copy for remote copy

• US 20030014534A1
• Filed: 07/13/2001
• Published: 01/16/2003
• Est. Priority Date: 07/13/2001
• Status: Active Grant

• Current Assignee: Kenji Yamagami, Naoki Watanabe
• Original Assignee: Kenji Yamagami, Naoki Watanabe
• Inventors: Watanabe, Naoki, Yamagami, Kenji
• Granted Patent: US 7,139,826 B2
• Time in Patent Office: Days
• US Class Current: 709/233
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1464 for networked environments
• CPC Class Codes: G06F 11/2071 using a plurality of controllers
• CPC Class Codes: G06F 11/2082 Data synchronisation

Abstract

A method of performing an initial copy procedure in a remote copy system, the method including: configuring a network path between a first disk subsystem and a second disk subsystem to increase the speed of data transmission across the network path; configuring the remote copy system for a remote copy operation; performing an initial copy operation to copy data across the network path from the first disk subsystem to the second disk subsystem; and adjusting the network path to reduce the speed of data transmission across the network path. A remote copy system, including: a first disk subsystem located at a first site; and a second disk subsystem capable to be coupled to the first disk subsystem via a network path, with the network path capable to be configured to increase or decrease the speed of data transmission from the first disk subsystem to the second disk subsystem.

Claims

1. A method of performing an initial copy procedure in a remote copy system, the method comprising:

configuring a network path between a first disk subsystem and a second disk subsystem to increase the speed of data transmission across the network path;

configuring the remote copy system for a remote copy operation;

performing an initial copy operation to copy data across the network path from the first disk subsystem to the second disk subsystem; and

adjusting the network path to reduce the speed of data transmission across the network path.

2. The method of claim 1 wherein the first disk subsystem is located in a master site.

3. The method of claim 1 wherein the first disk subsystem is located in a manufacturer site.

4. The method of claim 1, further comprising:

deploying the second disk subsystem to a remote site.

5. The method of claim 1 wherein the configuring the remote copy system comprises:

selecting multiple physical paths in the network path to transmit data across the path.

6. The method of claim 1 wherein the configuring the remote copy system comprises:

increasing a data transfer rate characteristic of the network path.

7. The method of claim 1 wherein adjusting the network path comprises:

reducing the number of physical paths in the network path for transmitting data.

8. The method of claim 1 wherein adjusting the network path comprises:

decreasing the data transfer rate characteristic of the network path.

9. An article of manufacture, comprising:

a machine-readable medium having stored thereon instructions to;

configure a network path between a first disk subsystem and a second disk subsystem to increase the speed of data transmission across the network path;

configure the remote copy system for a remote copy operation;

perform an initial copy operation to copy data across the network path from the first disk subsystem to the second disk subsystem; and

adjust the network path to reduce the speed of data transmission across the network path.

10. A method of performing an initial copy procedure in a remote copy system, the method comprising:

setting a storage media at a first site;

performing a split procedure in a first disk subsystem at the first site;

copying data from the first disk subsystem in the first site to the storage media;

moving the storage media from the first site to a second site;

storing the copied data at a second site; and

connecting a network path between the first disk subsystem and a second disk subsystem at the second site.

11. The method of claim 10 wherein the first disk subsystem is a master disk subsystem.

12. The method of claim 10 wherein the first disk subsystem is a manufacturer disk subsystem.

13. The method of claim 10 wherein the storage media is a removable media.

14. The method of claim 13, further comprising:

copying the data from the removable media to the second disk subsystem.

15. The method of claim 10 wherein the storage media includes at least one disk of the second disk subsystem.

16. The method of claim 15, further comprising:

configuring the at least one disk of the second disk subsystem.

17. The method of claim 10, further comprising:

performing a synchronization of data with the first disk subsystem and the second disk subsystem.

18. The method of claim 10, further comprising:

during the moving of the storage media, storing any update information in the first disk subsystem.

19. An article of manufacture, comprising:

a machine-readable medium having stored thereon instructions to;

setting a storage media at a first site;

performing a split procedure in a first disk subsystem at the first site;

copying data from the first disk subsystem in the first site to the storage media;

moving the storage media from the first site to a second site;

storing the copied data at the second site; and

connecting a network path between the first disk subsystem and the second disk subsystem.

20. A remote copy system, comprising:

a first disk subsystem located at a first site;

a second disk subsystem capable to be coupled to the first disk subsystem via a network path, with the network path capable to be configured to increase or decrease the speed of data transmission from the first disk subsystem to the second disk subsystem.

21. A remote copy system, comprising:

a first disk subsystem located at a first site and capable to store data; and

a copy engine capable to capable to copy data stored in the first disk subsystem to a target device, the first disk subsystem further capable to store update information while the target device is placed to a second site.

22. The remote copy system of claim 21, wherein the target device is a second disk subsystem capable to store data from the first disk subsystem.

23. The remote copy system of claim 21 wherein the target device is a movable media capable to store data from the first disk subsystem.