Remote storage disk control device and method for controlling the same

• US 8,255,652 B2
• Filed: 05/17/2011
• Issued: 08/28/2012
• Est. Priority Date: 09/17/2003
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Kasako, Naohisa, Kondo, Shuji, Suzuki, Toru
• Primary Examiner(s): PEUGH, BRIAN R
• Application Number:
  US13/109,306
• Publication Number:
  US 20110246737A1
• Time in Patent Office: 469 Days
• Field of Search: None
• US Class Current: 711/162
• CPC Class Codes: G06F 11/2066 Optimisation of the communication load
• CPC Class Codes: G06F 11/2069 Management of state, configuration or failover
• CPC Class Codes: G06F 11/2071 using a plurality of controllers
• CPC Class Codes: G06F 11/2074 Asynchronous techniques
• CPC Class Codes: G06F 11/2082 Data synchronisation
• CPC Class Codes: G06F 11/2094 Redundant storage or storage space G06F11/2056 takes precedence
• CPC Class Codes: G06F 11/2097 maintaining the standby controller/processing unit updated initialisation or re-synchronisation thereof G06F11/1658 and subgroups
• CPC Class Codes: G06F 2201/855 Details of asynchronous mirroring using a journal to transfer not-yet-mirrored changes

Abstract

A storage device system includes an information processing device, a first storage device equipped with a first storage volume, and a second storage device equipped with a second storage volume. The information processing device and the first storage device are communicatively connected to one another. Also, the first storage device and the second storage device are communicatively connected to one another. The information processing device is equipped with a first write request section that requests to write data in the first storage device according to a first communications protocol, and a second write request section that requests to write data in the second storage device according to a second communications protocol. The information processing device creates first data including a first instruction to be executed in the second storage device.

Claims

1. A storage device system coupled to an information processing device, the storage device system comprising:

a first storage device communicatively connected to the information processing device and managing at least one logical storage volume and a virtual volume in the first storage device, the at least one logical storage volume and the virtual volume are provided to the information processing device, the at least one logical storage volume in the first storage device including a first logical storage volume; and

second storage devices communicatively connected to the first storage device and managing at least one logical storage volume in the second storage devices including a second logical storage volume,

wherein the virtual volume of the first storage device is related to the second logical storage volume,

wherein when the first storage device receives a first command directed to the first logical storage volume in the first storage device from the information processing device, the first storage device stores first data related to the first command in the first logical storage volume and executes the first command using the first data;

wherein when first storage device receives a second command directed to the virtual volume in the first storage device from the information processing device, the first storage device transfer the second command and a second data related to the second command to the second logical storage volume in the second device request based on a relationship between the virtual volume and the second logical storage volume, the second storage device stores the second data in the second logical storage volume in response to receiving the second data and executes the second command using the second data.

2. A storage device system according to claim 1,

wherein the first logical storage volume and the second logical storage volume are command devices.

3. A storage device system according to claim 1,

wherein a third logical storage volume included in the at least one logical storage volume in the first storage device configures a remote copy pair with a fourth logical storage volume included in the at least one logical storage volume in the second storage device.

4. A storage device system according to claim 1,

wherein the first storage device is configured to receive both a command directed to the first logical storage volume and a command directed to another logical storage volume included in the at least one logical storage volume in the first storage device according to a first interface protocol.

5. A storage device system according to claim 3,

wherein the second command sent from the information processing device is used to request to obtain the processing status of a copy operation between the first logical storage volume and the fourth logical storage volume.

6. A storage device system according to claim 1,

wherein, in response to receiving the first command, the first storage device is configured to reply to the information processing device via the first logical storage volume.

7. A storage device system according to claim 1,

wherein, in response to receiving the second command, the second storage device is configured to reply to the information processing device via the second logical storage volume.