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A method for implementing iSCSI memory system

A technology of storage system and implementation method, which is applied in the direction of transmission system, electrical components, input/output to record carrier, etc., can solve the problems of high failure rate, insufficient throughput of iSCSI storage system, low efficiency of storage equipment, etc., to achieve guaranteed Integrity, improved concurrent IO capabilities, and simple configuration

Inactive Publication Date: 2008-06-18
TSINGHUA UNIV
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Problems solved by technology

[0003] However, due to the limitation of Ethernet bandwidth, compared with Fiber Channel storage, iSCSI storage system has the disadvantage that the throughput is not high enough
However, due to the characteristics of iSCSI storage system as a cheap substitute, iSCSI system faces the challenges of low storage device efficiency and high failure rate

Method used

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  • A method for implementing iSCSI memory system
  • A method for implementing iSCSI memory system
  • A method for implementing iSCSI memory system

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Embodiment Construction

[0109] The iSCSI protocol is an end-to-end transmission protocol for I / O block data-level storage on standard Ethernet devices, as shown in Figure 1.

[0110] The invention is the realization method of the iSCSI network storage system. In this iSCSI network storage system, the front-end application server is connected to the iSCSI storage system iSCSI controller through a Gigabit network switch or a Gigabit direct connection, and data transmission is performed between them through the TCP / IP protocol to form an iSCSI storage network. Its hardware architecture is shown in Figure 2.

[0111] Among them, the iSCSI controller of the iSCSI storage system is installed with 6 Gigabit network cards, which provide parallel data streams of 8 Gigabit Ethernet ports, and the total bandwidth reaches 6×1Gb. In addition, multiple storage disk arrays can be connected to the iSCSI controller to provide storage resource services to application servers through the IP network.

[0112] On the i...

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Abstract

A realization method for ISCSI storage system characterizes in realizing ISCSI protocol on ISCSI controller including a net card binding module realizing different load balances, a storage device management module providing fixed virtual device identifier and the heat plug function, an adaptive IQ load control program controlling parallel IQ load of low end storage device and a multi-path module for IQ requiring controlling different storage array channels. Storage device image module controlling the access limitation of a starter to the storage device, a block device support module realizing the transformation of SCSI order and soft device IQ and a software RAID module are added if necessary.

Description

technical field [0001] The implementation method of the iSCSI storage system belongs to the field of storage area network, and particularly relates to the field of iSCSI storage technology. Background technique [0002] The iSCSI (Internet Small Computer Systems Interface) protocol is an end-to-end transmission protocol that uses IP networks for I / O block data-level storage, and realizes the application server (initiator) and storage device (iSCSI control device) data transmission between. The iSCSI protocol is compiled by the Internet Engineering Task Force (IETF). For the Fiber Channel Storage Network (SAN), iSCSI is a supplementary or alternative standard. One of the advantages of iSCSI is that it allows IT users to take advantage of the strengths and expertise of existing infrastructure (TCP / IP networks). In addition to providing an inexpensive alternative to Fiber Channel, iSCSI brings many advantages to applications such as storage consolidation, business continuity,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06G06F3/06
Inventor 舒继武薛巍潘家铭罗骏于冰郑纬民
Owner TSINGHUA UNIV
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