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Update Linux and Unix Test Disk IO Performance With dd Command.MD

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DongShuaike 2015-08-15 18:24:35 +08:00
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在这个例子当中，我将使用搭载Ubuntu Linux 14.04 LTS系统的RAID-10(配有SAS SSD的Adaptec 5405Z)服务器阵列来运行。基本语法为：
dd if=/dev/input.file of=/path/to/output.file bs=block-size count=number-of-blocks oflag=dsync
## GNU dd syntax ##
## GNU dd语法 ##
dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync
## OR alternate syntax for GNU/dd ##
##另外一种GNU dd的语法 ##
dd if=/dev/zero of=/tmp/testALT.img bs=1G count=1 conv=fdatasync
输出样例：