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Method and device for realizing mixed buffer

A cache and buffer technology, applied in the direction of input/output to record carrier, etc., can solve the problems of reducing the reliability and loss of the storage system, achieve low cost, improve reliability, and realize the effect of power-off protection

Inactive Publication Date: 2013-08-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the battery is a consumable, if the data in the storage system is not read out in time within the effective time, there is still a possibility of loss, which reduces the reliability of the storage system

Method used

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  • Method and device for realizing mixed buffer
  • Method and device for realizing mixed buffer

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0017] figure 1 It shows a schematic structural diagram of a device for implementing hybrid caching provided by an embodiment of the present invention, as shown in figure 1 As shown, the device includes a controller, a non-volatile register, a volatile register, a hard disk, a firmware flash memory, and a chip power supply. in:

[0018] The controller is used to receive and determine the operation request input by the server / host, and when the operation request is a write operation request, in order to write data into the non-volatile buffer, allocate a write cache address and a mirror cache address, during operation When the request is a read operation...

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Abstract

The invention discloses a method and a device for realizing a mixed buffer. The buffer is provided with a volatile buffer and a non-volatile buffer. The method comprises the following steps that: a controller receives and judges an operation request input by a server / a host; if the operation request is judged as a write operation request, the controller writes data from the server / the host to thenon-volatile buffer; and if the operation request is judged as a read operation request, the controller writes read data into the volatile buffer. The method and the device can realize the power-failprotection of stored data by the mixed use of the volatile buffer and the non-volatile buffer, and has the advantages of low cost, easy implementation, and higher environmental friendliness.

Description

technical field [0001] The invention relates to the fields of computer and communication, in particular to a method and device for realizing hybrid cache in a storage system. Background technique [0002] At present, with the massive growth of data, the application prospects of storage system devices such as disk arrays are widely optimistic. The stability of the storage system is unquestionable, so the power-down protection technology in the disk array is very important. The power failure protection means that after the normal power supply of the storage system loses power, the storage system can quickly use other power supplies for power supply to ensure that data will not be lost within a certain period of time. When the normal power supply of the system is restored, the storage system Automatically switch to the storage system power supply. [0003] At present, the basic practice in servers and disk storage systems is to use a technology of dynamic random access memory...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 刘俊黄剑雷林吴庆家
Owner ZTE CORP
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