Storage system and method for implementing the same

A storage system and storage control technology, applied in the computer field, can solve the problems of asymmetric read and write performance of SSD, high cost of SDD, and increased cost of controller, so as to improve writing speed and service life, and improve data reliability and availability. , the effect of good read performance

Active Publication Date: 2014-12-03
INT BUSINESS MASCH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, SSD has the following disadvantages: First, the cost of SDD is much higher than that of HDD (taking the current market price as an example, $10 / GB for SSD vs. $0.6 / GB for HDD)
In SSDs, the controller is extremely expensive
The second is that each unit of SSD only has a limited write cycle, which will affect its reliability
Although several techniques have been introduced to overcome this issue, they increase the cost of the controller and reduce IOPS and throughput
Third, the read and write performance of SSD is asymmetric
This solution not only brings a large management burden, but also cannot achieve high data read and write performance and high availability of data

Method used

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  • Storage system and method for implementing the same
  • Storage system and method for implementing the same
  • Storage system and method for implementing the same

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Embodiment Construction

[0018] Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more complete understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it is to be understood that the invention is not limited to the specific embodiments described. Rather, the invention is contemplated to be practiced with any combination of the following features and elements, whether or not they relate to different embodiments. Accordingly, the following aspects, features, embodiments, and advantages are for illustration purposes only and should not be regarded as elements or limitations of the appended claims unless explicitly set forth in the claims.

[0019] Now refer to figure 1 , which shows a storage system according to an embo...

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Abstract

The invention discloses a storage system and a method for implementing the same. The storage system comprises a disc array and a storage control device, wherein the disc array comprises at least one solid-state disc and at least one non-solid-state disc; the storage control device is configured to respond to entering into a clearing mode, scanning and moving data blocks in the at least one non-solid-state disc in the disc array to form more continuous idle blocks. The storage system provided by the invention has better reading and writing performance, higher data reliability and usability and lower cost.

Description

technical field [0001] The present invention relates to the field of computers, in particular to a storage system and a method for implementing the storage system. Background technique [0002] The storage system is one of the most important components in a computer system. People have always wanted storage systems with high speed (high IOPS and high throughput), high reliability, and low cost. [0003] Most existing servers or personal computers still use hard disk drives (HDDs) as the primary storage system. Despite the lower cost of HDD-based storage systems, improvements in HDD access latency have lagged far behind improvements in capacity in recent years. High latency will greatly affect the IOPS (input / output operations per second) value. Especially for workloads where random I / O dominates, such as database workloads, the HDD will become a performance bottleneck. For workloads where sequential access is dominant, HDDs have better access performance. For example, a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 赵邑新张海勇韩竹王海川
Owner INT BUSINESS MASCH CORP
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