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
CN113194118BActive Publication Date: 2022-05-27NEW H3C BIG DATA TECH CO LTD
6 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NEW H3C BIG DATA TECH CO LTD
Publication Date
2022-05-27

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More