A method and device for sequence flow identification

An identification method and sequential flow technology, applied in the direction of transmission system, electrical components, etc., can solve the problem that sequential flow cannot be effectively identified, and achieve the effect of anti-random interference

Active Publication Date: 2022-05-27
NEW H3C BIG DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present application provides a sequence flow identification method and device to solve the problem that the sequence flow cannot be effectively identified in the prior art

Method used

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  • A method and device for sequence flow identification
  • A method and device for sequence flow identification
  • A method and device for sequence flow identification

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Embodiment Construction

[0048] Terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0049] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the ...

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Abstract

The present application relates to the technical field of data storage, and in particular, to a sequence flow identification method and apparatus. The method includes: receiving an IO request sent by a host, where the IO request includes volume information, a request start address and a request range; and determining a target corresponding to the volume according to the volume information, request start address and request range included in the IO request Sequence flow table, and determine whether there is a target sequence flow that matches the IO request in the target sequence flow table, wherein the target sequence flow table includes multiple records identified based on the historical IO recorded in the historical IO table corresponding to the volume. If there is a target sequence flow matching the IO request, then update the target sequence flow based on the IO request; if there is no target sequence flow matching the IO request, then update the target sequence flow based on the IO request and all The historical IO recorded in the historical IO table corresponding to the volume is subjected to sequential flow identification operation.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular, to a sequence flow identification method and apparatus. Background technique [0002] The distributed storage system can provide distributed block storage services. The data is organized by objects in the distributed storage cluster, and the host accesses the data in the distributed storage cluster through the interface. The read cache of distributed storage is on the distributed storage cluster side, and the block storage side implements sequence stream identification and pre-read control. After the block device identifies the data stream as a sequence stream, it sends a pre-fetch request to the distributed storage cluster, and sends the prefetch request to the distributed storage cluster in advance. Data is prefetched into the cache. In this way, after the data hits the cache, the latency of IO at the bottom layer will be greatly improved, and the throughput o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/1097
CPCH04L67/1097
Inventor 廖孝军
Owner NEW H3C BIG DATA TECH CO LTD
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