新硬盘技术
普通硬盘速度
http://detail.zol.com.cn/hard_drives/index305156.shtml
http://item.jd.com/544026.html?cu=true&utm_source=baidu-search&utm_medium=cpc&utm_campaign=t_262767352_baidusearch&utm_term=9449786277_0_4ce6171876cf42e6a620b0e9c44f8c37#
http://bbs.zol.com.cn/diybbs/d525_5692.html
单碟1TB
希捷4K扇区技术,不用担心4K对齐,默认跟操作系统看齐,512扇区标准已经过时
数据传输率 200MB/s
http://www.infoq.com/cn/articles/database-timestamp-03
因为我们知道从磁盘到内存的带宽是很小的,普通磁盘也就每秒100MB的读速度。利用压缩,我们可以把数据以压缩的方式读取出来,然后在内存里再进行解压,从而获得比读取原始数据更高的效率。
产品信息Product Information
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SSD
数据传输率 540MB/s
http://item.jd.com/1279836.html?cu=true&utm_source=baidu-search&utm_medium=cpc&utm_campaign=t_262767352_baidusearch&utm_term=2483377228_0_22420a721f50479abdeed4f8453deb79
服务器
.8测试机磁盘速度