Storage service apparatus with double controllers and high speed caching mirroring method

A storage service and cache technology, applied in memory address/allocation/relocation, electrical components, transmission system, etc., can solve problems such as increasing the access load of storage service devices

Inactive Publication Date: 2009-04-22
INVENTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during operation, because the caches of the first controller and the second controller need to transfer data to each other, each transfer of data will increase the access load of the storage service device

Method used

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  • Storage service apparatus with double controllers and high speed caching mirroring method
  • Storage service apparatus with double controllers and high speed caching mirroring method
  • Storage service apparatus with double controllers and high speed caching mirroring method

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Embodiment Construction

[0028] The present invention proposes a storage service device with dual controllers, please refer to FIG. 2 , which is a schematic diagram of the architecture of the storage service device of the present invention.

[0029] The dual-controller storage service device may be composed of an embedded system, or may be composed of multiple computers. In this embodiment, an embedded system is used as an illustration, and the dual-controller storage service device 200 includes: a peer-to-peer environment module 210 , a first controller 220 , a second controller 230 and a storage device 240 .

[0030] The peer-to-peer environment module 210 is electrically connected to the external network, the first controller 220 and the second controller 230 respectively. The peer-to-peer environment module 210 is used to dispatch controllers so that each controller is used to receive data transmitted from the client or provide related services to the client. In addition, the peer-to-peer environ...

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Abstract

The invention provides a storage service device with dual controllers and a mirroring method of a cache thereof. The storage service device comprises an equivalent environment module, a storage device, a first controller and a second controller. The first controller is equipped with a virtual disk and a first cache. The second controller is equipped with a second cache. The method comprises the following steps: selecting the first controller or the second controller as a controller serving an external network by an equivalent environment way; writing the data which are received by the external network in the second cache if the controller selected by the equivalent environment way is the second controller; and establishing communication connection with the first controller, and writing the data which are received by the external network in the first cache and the virtual disk by the second controller.

Description

technical field [0001] The present invention relates to a storage service device with dual controllers and a mirroring method for cache thereof, in particular to a storage service device with dual controllers and a mirroring method for data cached in the storage service device with dual controllers. shot method. Background technique [0002] In order to increase the access performance of storage devices, a storage service device with dual controllers has been proposed. Compared with single controllers, dual controllers can provide multiple clients with the same service at the same time. [0003] In the past, a storage service device with dual controllers adopted a peer-to-peer environment function (same view) in order to ensure that multiple clients could have the same operating environment. The function of the peer-to-peer environment is mainly that when the client is connected to the storage device, the client will not have different operating environments and services b...

Claims

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Application Information

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IPC IPC(8): G06F12/08G06F3/06H04L29/08
Inventor 王建忠陈玄同刘文涵
Owner INVENTEC CORP
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