Method, system and device for processing data access

Abstract

The invention discloses a method, a system and a device for processing data access. The method for processing the data access comprises the following steps of: determining the priority level corresponding to the current application according to the application level; obtaining an input / output I / O data packet related to the current application, wherein the input / output I / O data packet carries a priority identifier corresponding to the priority level; acquiring a small computer system interface SCSI data packet carrying the priority mark according to the I / O data packet; and selecting at least one path of bandwidth required by an SCSI data packet with a high priority level to transmit the SCSI data packet with high priority level according to a preset routing strategy and the priority identifier in the SCSI data packet. The method, the system and the device realizes the support of the different processing of the storage equipment data access of the SCSI interface, thereby improving the service quality of accessing the storage equipment.

Description

technical field [0001] Embodiments of the present invention relate to the field of storage technologies, and in particular, to a data access processing method, system, and device. Background technique [0002] With the rapid development of the Internet, the demand for transmitting distributed multimedia applications on the Internet is increasing, and users have different requirements for the quality of service of different distributed multimedia applications, which requires that the network should be allocated according to different needs of users. Scheduling resources. QoS (Quality of Service, Quality of Service) is a quality agreement on information transmission and sharing between the network and users and between users communicating with each other on the network. [0003] In the field of storage technology, due to the continuous expansion of data applications, in order to adapt to this development, it is necessary to introduce QoS in the storage field. In key applicat...

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Problems solved by technology

[0006] In the process of realizing the present invention, the inventor finds that in the prior art: in the field of storage technology, storage devices with SCSI (Small Computer System Interface, small computer system interface) are basically used, and for non-Windows operating systems Servers on the platform currently do not support differential treatment of data access to storage devices (including storage devices with SCSI interfaces); while servers based on the Windows Vista operating system platform support simple differential treatment of data applications, but only support low-end Storage devices, for example: built-in storage devices in servers, such as hard disks with ATA (Advanced Technology Attachment, Advanced Technology Attachment) interface, and storage devices with USB (Universal Serial Bus, Universal Serial Bus) interface, so it does not support SCSI Different treatment for data access of interface storage devices, and for the aforementioned low-end storage devices, servers based on the Windows Vista operating system platform must support simple implementation of different data applications, and it is also necessary to modify the code of the software running on the existing server

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