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Data migration trigger method and device

一种数据、迁移对象的技术，应用在存储领域，能够解决数据迁移方法无法指定数据迁移等问题

Active Publication Date: 2015-11-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a data migration trigger method and device, which are used to solve the defect that the data migration method in the existing SAN storage system cannot perform specified data migration according to user requirements

Method used

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  • Data migration trigger method and device

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] figure 1 It is a flow chart of a method for triggering data migration provided by an embodiment of the present invention. The execution subject of the embodiment of the present invention is the host that performs IO interaction with the storage system. like figure 1 shown, including:

[0027] Step 11: The host receives the data mig...

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Abstract

The present invention provides a method and device for triggering data migration; the method includes: a host receives a data migration policy set by a user, in which the data migration policy includes a migration object, a migration condition and a target disk that are set by the user, and the migration object includes a specified file or a specified directory or data accessed by a specified application in a SAN storage system; the host resolves a block address of the migration object in the data migration policy; and the host sends a migration instruction to a disk array controller in the SAN storage system, to instruct the disk array controller to migrate the migration object from a source disk to the target disk according to the migration condition and the block address of the migration object. The host of the present invention instructs the disk array controller to carry out data migration according to the data migration policy set by the user, and resolves the block address of the migration object, so the SAN storage system can achieve the objective of migrating specified data according to a user requirement.

Description

technical field [0001] The present invention relates to storage technology, in particular to a method and device for triggering data migration. Background technique [0002] A tiered storage system usually consists of a traditional disk and a solid state disk (SolidStateDisk or SolidStateDrive, SSD for short). SSD, also known as electronic hard disk or solid-state electronic disk, is a hard disk composed of a control unit and a solid-state storage unit. Compared with traditional disks, solid-state drives have the following advantages: fast start-up, no motor acceleration process; no magnetic head, fast random read, very small read delay; relatively fixed read time. The seek time of the SSD is independent of the data storage location, and disk fragmentation does not affect the read time. Therefore, hotspot data is usually cached in SSDs to improve the IO speed of accessing hotspot data. [0003] At present, the data migration in the storage area network (Storage Area Netwo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02
CPCG06F3/0689G06F3/061G06F3/0647G06F3/0685
Inventor 张冬张翼
Owner HUAWEI TECH CO LTD