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A lun division method and device

A technology of equipment and connection methods, applied in the computer field, can solve problems affecting the performance of storage systems and inconsistencies in the performance of storage objects

Active Publication Date: 2021-09-14
SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application scenario of the file system (for example, Luster parallel file system), the performance of the storage object (mapped to the host LUN) will be inconsistent, which will affect the performance of the entire storage system

Method used

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  • A lun division method and device
  • A lun division method and device

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0050] Based on the above purpose, the first aspect of the embodiments of the present invention proposes an embodiment of a method for dividing a LUN. figure 1 Shown is a schematic flow chart of the method.

[0051] Such as figure 1 As shown in , the method may include the following steps:

[0052] S1 Check and adjust the connection method between the storage expansion cabinet and the controller and the number of SAS connections so that the maximum output bandwidth of each storage expansion cabinet is consistent. The maximum output bandwidth of each storage expansion cabinet can be adjusted by adjusting the connection method of the SAS cable of the expansion cabinet to make the maximum output bandwidt...

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Abstract

The present invention provides a method and device for dividing LUNs. The method includes the following steps: checking and adjusting the connection mode between the storage expansion cabinet and the controller and the number of SAS connections so that the maximum output bandwidth of each storage expansion cabinet is consistent; querying the controller Port identification and storage expansion cabinet identification; create an Mdisk array, and add the corresponding controller port identification and corresponding storage expansion cabinet identification for each Mdisk; logically divide the storage space in the Mdisk array to create volumes, and divide the volumes into Logical LUN, where the Mdisks that make up the logical LUN come from different storage expansion cabinets and different controller ports; map the logical LUN to the host. By using the solution of the present invention, it is possible to ensure balanced and optimal export bandwidth of the expansion cabinet, to make the I / O performance of the LUN consistent, and to achieve the best overall system performance.

Description

technical field [0001] This field relates to the computer field, and more specifically relates to a method and device for dividing LUNs. Background technique [0002] Storage Area Network (SAN for short) adopts Fiber Channel (FC for short, different from Fiber Channel) technology, connects storage arrays and server hosts through FC switches, and establishes an area network dedicated to data storage. After more than ten years of development, SAN has become quite mature and has become the de facto standard in the industry (but the optical fiber switching technologies of various manufacturers are not exactly the same, and their servers and SAN storage have compatibility requirements). [0003] SANs focus on the unique problems of enterprise-class storage. The two root causes of the problems encountered by current enterprise storage solutions are: the structural limitations caused by the tight integration of data and application systems, and the limitations of the Small Compute...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/067G06F3/061G06F3/0658G06F3/0613G06F3/0631G06F3/0644G06F3/0673
Inventor 冯轶
Owner SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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