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Storage system and method of storaging data and method of reading data

A storage system and data technology, applied in the field of network storage, can solve the problems of increasing command or data transmission delay, unable to meet real-time requirements, business application occasions, long time, etc.

Inactive Publication Date: 2007-12-05
HEWLETT-PACKARD ENTERPRISE DEV LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of devices and ports in the SDN network, the entries in a routing list are relatively large. In this way, it usually takes a long time to search the routing list, and the step-by-step search method further increases the time to determine the forwarding route. , thus increasing the transmission delay for commands or data
In addition, since SDN is a standard Ethernet, the storage controller needs to perform encapsulation processing when sending iSCSI protocol packets, and needs to perform decapsulation processing when receiving iSCSI protocol packets from disk arrays, thus further increasing the need for command or data processing. transmission delay, which cannot meet the high real-time requirements of business applications

Method used

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  • Storage system and method of storaging data and method of reading data
  • Storage system and method of storaging data and method of reading data
  • Storage system and method of storaging data and method of reading data

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Embodiment Construction

[0138] In the prior art, the IP SAN system is based on the Ethernet to complete the transmission of commands and data, thus causing a delay in the transmission of commands and data. At present, because the PCIe protocol can integrate multiple channels, and has multi-level service quality levels and mechanisms for information processing and congestion avoidance, when transmitting PCIe protocol packets, only data packets need to be forwarded according to ID routing and address routing, without The process of searching the routing list in the Ethernet, step-by-step transmission, encapsulation and decapsulation in the prior art is performed, so the transmission delay of commands and data can be greatly reduced.

[0139] In view of the above characteristics, the present invention proposes a storage system utilizing PCIe-based interface devices. Fig. 4 is a schematic diagram of the basic structure of the storage system in the present invention. Referring to Fig. 4, the storage syst...

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Abstract

This invention discloses a memory system and a method for storing and reading data, in which, said system includes: a server, a storage controller, a device and a disk array based on PCIe interface. The method for storing data includes: the storage controller sends the write order and data sent by a server via the PCIe interface to a device based on the PCIe interface, which sends the write order and data to a disk array to store them. The method for reading data includes: the storage controller sends the read order sent by a server via the PCIe interface to a device based on PCIe interface which sends the read order to a disk array, which sends data to a device based on PCIe interface to send the data to the storage controller, which sends the data to the server to reduces the time cost for transmitting orders or data.

Description

technical field [0001] The invention relates to network storage technology, in particular to a storage system, a method for storing data, a method for reading data and a device based on a PCIe interface. Background technique [0002] With the rapid increase of information volume, network storage technology emerges as the times require. In the current network storage technology, a storage area network (Storage Area Network, SAN) is a high-speed dedicated subnet that connects servers and disk arrays through a switching network. Among them, disk arrays are mainly used to store large amounts of data, and servers are mainly used It is used to read and write to the disk array in order to obtain and store data. In the SAN system, each server can access any disk array through the switching network, thus greatly improving the availability of data. [0003] As for the SAN system, it mainly includes FC SAN system and IP SAN system at present. FIG. 1 is a schematic structural diagram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06H04L29/06
Inventor 魏展明
Owner HEWLETT-PACKARD ENTERPRISE DEV LP
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