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目前专注于Oracle Clusterware、RAC、ASM的质量保证; 五年以上的自动化测试和软件质量保证经验,擅长企业测试自动化实施,软件性能测试等

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瑞德0工作原理图解及特点分析

对存储的初步认识还是加入oracle以后的事情,毕竟这是一个非常专业的领域,到现在还一直对存储的概念有点点模糊:光线通道,FC,SCSII,NAS,SAN, DAS,LUN,冗余,容灾,镜像,控制器等等等等。这些概念正在慢慢慢慢清晰,今天又发现一个系列的RAID的专题文章,转载一下,学习中。。。

RAID 0: Striped Disk Array without Fault Tolerance

Characteristics/Advantages

1. RAID 0 implements a striped disk array, the data is broken down into blocks and each block is written to a separate disk drive

2. I/O performance is greatly improved by spreading the I/O load across many channels and drives

3. Best performance is achieved when data is striped across multiple controllers with only one drive per controller

4. No parity calculation overhead is involved

5. Very simple design

6. Easy to implement

Disadvantages

1. Not a “True” RAID because it is NOT fault-tolerant

2. The failure of just one drive will result in all data in an array being lost

3. Should never be used in mission critical environments

Recommended Applications

1. Video Production and Editing

2. Image Editing

3. Pre-Press Applications

4. Any application requiring high bandwidth

raid1
RAID Level 0 requires a minimum of 2 drives to implement

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