Calculator system with shared storage equipment and sharing method thereof

Abstract

The invention discloses a calculator system with shared storage equipment and a sharing method thereof, which are used for adjusting the right of a first controller and a second controller to directly access a plurality of sets of shared storage equipment and the first controller is connected to the second controller by a connecting channel. The method for sharing the storage equipment comprises the following steps of: monitoring and counting the direct access flow and indirect access flow of the first controller to storage equipment; monitoring and counting the direct access flow and the indirect access flow of the second controller to the storage equipment; monitoring the flow of the connecting channel, when the flow of the connecting channel is in excess of a threshold value, inquiringthe statistic data of the first controller and the second controller, switching the direct access right of the storage equipment of which the indirect data access flow is more than the direct data access flow, to another controller, so that the flow of the connecting channel is lowered.

Description

technical field [0001] The present invention relates to a computer system for sharing storage devices and a sharing method thereof, in particular to a sharing method for reducing internal network pressure between two controllers in a computer system in which two controllers share a plurality of storage devices A computer system for storage devices and a sharing method thereof. Background technique [0002] At present, in order to improve the availability and parallel processing capability of the computer system, a method of sharing multiple physical storage devices with dual controllers is usually adopted. The user performs read and write operations on the storage device through the controller. Such as figure 1 As shown, the first controller 110 is connected to the second controller 120 through a connection channel 130 . For any physical storage device, only one controller (such as the first controller 110) can read or write to it at any time. When the user uses other con...

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Problems solved by technology

[0003] However, this approach in the prior art still has many defects, especially when users access the physical storage device through a controller that is not connected to the physical storage device, it may cause the controller to fail due to excessive access pressure. become slow

[0004] In addition, if the system maintenance is too dependent on the internal network between the controllers (for example, the controllers determine the status of each other by transmitting heartbeat signals), it may cause abnormalities

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