A Thin Provisioning Synchronization Method for Dual Controller Disk Arrays

Abstract

The present invention relates to a method for automatic thin configuration synchronization of a dual-control disk array, which includes: the preprocessing process includes: the kernel loads the target driver of the automatic IO control device module; defines the mapping between the underlying block device and the automatic IO control device in the user state Relationship; the kernel creates a target device according to the incoming parameters, and records the IO control information in the IO control attribute; creates a mapping table; creates a dm device, records the device type in the dm device metadata area, and generates an automatic IO control device; Creation of thin-provisioned volumes on automated IO control devices; and IO processing. The invention discloses an automatic thin configuration synchronization method of a dual-controller disk array. The method realizes data synchronization of a thin resource allocation volume on a double-controller disk array, and ensures that the thin resource allocation volume realizes failover.

Description

technical field

[0001] The invention relates to the technical field of computer information storage, in particular to an automatic thin provisioning synchronization method of a dual-controller disk array. Background technique

[0002] With the explosive growth of information and the popularization of information systems, the scale and capacity of storage systems are expanding year by year. In order to ensure that storage capacity can meet current or even future business needs, users usually deploy physical storage space larger than actual needs—"for safety". However, in the actual use process of users, their deployment capacity is usually not fully utilized. Industry research organizations have found that in some projects, the actual used capacity accounts for only 20%-30% of the deployed capacity. Therefore, "thin provisioning" technology came into being to achieve higher storage capacity utilization and bring greater return on investment. Thin provisioning, sometimes ca...

Examples

Embodiment Construction

[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] figure 1 Shown is a schematic diagram of a dual-controller disk array, such as figure 1 As shown, the required hardware platform of the present invention is a dual-control disk array, which is composed of two controllers and a shared storage unit, such as figure 1 As shown, the dual-control disk array includes a controller (primary controller) 1 , a controller (standby controller) 2 , a heartbeat link 3 , a shared data link 4 , and a shared storage unit 5 . The shared storage unit includes several magnetic / electronic disk devices 6 . The platform ensures that the two controllers of the dual-controller disk array define the active and standby roles respectively, the shared storage unit ensures that available st...

technical field

[0001] The invention relates to the technical field of computer information storage, in particular to an automatic thin provisioning synchronization method of a dual-controller disk array. Background technique

[0002] With the explosive growth of information and the popularization of information systems, the scale and capacity of storage systems are expanding year by year. In order to ensure that storage capacity can meet current or even future business needs, users usually deploy physical storage space larger than actual needs—"for safety". However, in the actual use process of users, their deployment capacity is usually not fully utilized. Industry research organizations have found that in some projects, the actual used capacity accounts for only 20%-30% of the deployed capacity. Therefore, "thin provisioning" technology came into being to achieve higher storage capacity utilization and bring greater return on investment. Thin provisioning, sometimes ca...

Examples

Embodiment Construction

[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] figure 1 Shown is a schematic diagram of a dual-controller disk array, such as figure 1 As shown, the required hardware platform of the present invention is a dual-control disk array, which is composed of two controllers and a shared storage unit, such as figure 1 As shown, the dual-control disk array includes a controller (primary controller) 1 , a controller (standby controller) 2 , a heartbeat link 3 , a shared data link 4 , and a shared storage unit 5 . The shared storage unit includes several magnetic / electronic disk devices 6 . The platform ensures that the two controllers of the dual-controller disk array define the active and standby roles respectively, the shared storage unit ensures that available st...

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