Kern memory exchange platform system for mass memory system

Abstract

The invention discloses a core storage exchange platform system for mass storage system which comprises exchange frame, bridge and a plurality of FC wire-card and iSCSI wire-card, The FC wire-card and iSCSI wire-card are connected through bridge and exchange frame; wherein, the exchange frame is for storage partition and storage exchange, the bridge is for realizing exchanging frame and stream managing of protocol bridge between the FC wire-card and the iSCSI wire-card. The invention can realize storage exchanges between FC and FC, FC and iSCSI, iSCSI and merge FC-SAN and IP-SAN with high efficiency, improve the exchange performance of SAN and realize the function of VSAN. The inventive core storage exchange platform can connect with present disk array, iSCSI, magnetic tape and other storage device, and IP exchange, FC exchange storage devices to construct a large-scale network storage system of great performance and easy extension.

Description

technical field [0001] The invention belongs to the field of data storage, and in particular relates to a core storage exchange platform system, through which a mass storage system including an IP storage area network (IP SAN) and a fiber channel storage area network (FC SAN) can be constructed . Background technique [0002] With the popularization of network applications and the emergence of the next-generation Internet, the scale of the network continues to expand, and network applications make digital information explode. Statistics from IDC show that in the five years from 1999 to 2003, the worldwide demand for data storage capacity has grown from less than 200PB (1P=1024G) in 1999 to 2EB (1E=1024P) in 2003 , and grow at an annual rate of 80%. The sharp increase in information requires larger and larger storage devices to store these digital information. At present, the storage capacity of a single-level storage node has been required to reach the PB level. In order ...

AI Technical Summary

Problems solved by technology

[0003] First, the performance-price ratio is not high

In the large-scale SAN switching architecture formed by the interconnection of multiple FC switches with low ports, there is a lack of high-speed switching channels, and the information exchange between multiple FC switches is only carried out through 2G interconnection links. Therefore, the system The performance is not high, and at the same time, due to the high price of FC switches, the cost performance of the system is not high

[0004] Second, the stability of the system decreases with the expansion of the system scale

In the large-scale SAN switching framework formed by the interconnection of multiple FC switches with low port numbers, in the multi-level switching framework formed by the expansion of a large number of FCs, with the increase of FC switching equipment, the possibility of system equipment failure also increases. increase, the stability of the system will also decrease; another addition or subtraction of equipment will generate a large number of configuration information storms, and thus lead to the instability of the entire switching architecture

[0005] Third, the configuration and management are complex

Configuring and managing a switching fabric consisting of a large number of FC switches through expansion is not only complicated but also inefficient

[0006] Fourth, the current standard of FC switches has not been unified, and the interconnection between FC switches produced by different manufacturers still has the problem of incompatibility

However, the existing director-level core storage switches are mainly based on FC-SAN, and the support for IP-SAN is insufficient. For example, the above-mentioned Intrepid i10K only supports the connection of FC-SAN. Although MDS9000 also provides IP port connection, it is IP is encapsulated in FC frames for transmission and processing, which reduces the data processing efficiency of IP-SAN

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