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LUN division method and equipment

A device and connection technology, applied in the computer field, can solve the problems affecting the performance of the storage system and inconsistent performance of the storage objects, and achieve the effect of consistent I/O performance and the best overall system performance.

Active Publication Date: 2020-06-23
INSPUR SUZHOU 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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  • LUN division method and equipment

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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] like 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 bandwidth o...

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Abstract

The invention provides an LUN (Logical Unit Number) division method and equipment. The method comprises the following steps: checking and adjusting the connection mode of storage expansion cabinets and a controller and the number of SAS (Serial Attached SCSI) connection lines so as to enable the maximum output broadband of each storage expansion cabinet to be consistent; inquiring a controller port identifier and a storage expansion cabinet identifier; creating an Mdisk array, and adding a corresponding controller network port identifier and a corresponding storage expansion cabinet identifierfor each Mdisk; carrying out logic division on a storage space in the Mdisk array to create a volume, dividing the volume into logic LUNs, and enabling Mdisks forming the logic LUNs to come from different storage expansion cabinets and different controller ports; and mapping the logic LUN to the host. By using the scheme of the invention, balance and optimum can be ensured on the outlet bandwidthof the expansion cabinet, the I / O performance of the LUN can be consistent, and the overall performance of the system can be optimal.

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 Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/067G06F3/061G06F3/0658G06F3/0613G06F3/0631G06F3/0644G06F3/0673
Inventor 冯轶
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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