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Storage system and storage control device

a storage system and control device technology, applied in the field of storage system and storage control device, can solve the problems of increasing the number of storage control devices that construct the storage system, the type of storage control device cannot be effectively utilized, and the introduction cost is also increased

Inactive Publication Date: 2007-08-02
OKUMOTO KATSUHIRO +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution allows for the efficient utilization of old storage devices as new, adding new functions while hiding performance limitations, and providing high-performance services by integrating old devices' resources into a new system, enhancing convenience and flexibility in storage management.

Problems solved by technology

In cases where a complete transition is made from an old type of storage control device to a new type of storage control device, the function and performance of the new type of storage control device can be utilized; however, the old type of storage control device cannot be effectively utilized, and the introduction costs are also increased.
On the other hand, in cases where an old type of storage control device and a new type of storage control device are used together, the number of storage control devices that construct the storage system is increased, and considerable effort is required in order to control and operate both the new and old storage control devices.
Furthermore, in cases where the response of the storage device in which the old type of storage control device is installed is slow, the performance of the overall system drops as a result of this old type of storage control device being connected to the storage system.
Furthermore, there may also be cases in which an old type of storage device cannot be utilized “as is”, as in combinations of open type storage devices and main frames, or servers to which only storage devices with specified functions can be connected.

Method used

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  • Storage system and storage control device
  • Storage system and storage control device
  • Storage system and storage control device

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

1. FIRST EMBODIMENT

[0057]FIG. 2 is a block diagram which shows the construction of the essential parts of the storage system of the present embodiment. For example, the hosts 10A and 10B are computer devices comprising information processing resources such as a CPU (central processing unit), memory and the like; for instance, these hosts are constructed as personal computers, workstations, main frames or the like.

[0058] The host 10A comprises an HBA (host bus adapter) 11A that is used to access a first storage device 100 via a communications network CN1, and (for example) an application program 12A such as data base software or the like. Similarly, the host 10B also comprises an HBA 11B that is used to access a second storage device 200, and an application program 12B. Below, in cases where no particular distinction is made between the respective hosts 10A and 10B, these parts will be referred to simply as hosts 10, HBA 11 and application programs 12.

[0059] For example, depending ...

second embodiment

2. SECOND EMBODIMENT

[0165] A second embodiment of the present invention will be described with reference to FIG. 17. The following embodiments including this embodiment correspond to modifications of the abovementioned first embodiment. In the present embodiment, copying is performed among a plurality of virtual internal volumes inside the first storage device 100. Furthermore, in the present embodiment, the first storage device 100 does not comprise any internal volumes. FIG. 17 is an explanatory diagram showing the storage structure of a storage system constituting a second embodiment of the present invention.

[0166] In the present embodiment, the first storage device 100 comprises a third storage device 300 in addition to a second storage device 200. Like the second storage device 200, this third storage device 300 is a device that is externally connected to the first storage device 100. Like the second storage device 200, the third storage device 300 comprises (for example) PDEV...

third embodiment

3. THIRD EMBODIMENT

[0170] A third embodiment will be described with reference to FIG. 18. FIG. 18 is an explanatory diagram which shows one example of the control screen used by the storage system. This embodiment can be used in any of the respective embodiments described above.

[0171] For example, in cases where copying pairs are set in the storage system, the user logs into the managing device 20, and calls up a control screen such as that shown in FIG. 18. When the construction of a copying pair or the like is set on this control screen, the managing device 20 sends instructions for alteration of the construction to one or both of the storage devices 100 and 200. Receiving these instructions, the respective storage devices 100 and 200 alter their internal construction.

[0172] A plurality of different types of control menus M1 through M3 can be set on the control screen. For example, these control menus M1 through M3 can be constructed as tab type switching menus. For instance, th...

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PUM

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Abstract

Virtualization arrangements, including: splitting a relationship between a first and second virtual volume; receiving a differential copying request; if the differential copying request indicates to copy differential data from one of the first and second virtual volume to the other of the first and second virtual volume, (1) controlling to copy the data to the one of the first and second virtual volume based on the differential information, and (2) transferring the data to the other of the first and second logical volume of the storage systems, so that the storage system can write the data of the write request to a storage area of the disk drives.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This is a continuation of U.S. application Ser. No. 11 / 016,806, filed Dec. 21, 2004. This application relates to and claims priority from Japanese Patent Application No. 2004-312358, filed on Oct. 27, 2004. The entirety of the contents and subject matter of all of the above is incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a storage system and a storage control device. [0004] 2. Description of the Related Art [0005] For example, data is controlled using relatively large-scale storage systems in order to handle large quantities of various types of data in government organizations, public offices, autonomous regional bodies, business enterprises, educational organizations and the like. For instance, such storage systems are constructed from disk array devices or the like. Disk array devices are constructed by disposing numerous storage devices in the for...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G11C19/08
CPCG06F3/0605G06F3/0607G06F3/065G06F11/2082G06F3/067G06F11/1662G06F11/2071G06F3/0665
Inventor OKUMOTO, KATSUHIRONAKAGAWA, YOSHIHITOHONMA, HISAOTAMURA, KEISHI
Owner OKUMOTO KATSUHIRO