สำหรับคำสั่งที่ใช้ทดสอบ
CentOS
hdparm -t /dev/sda
CentOS & FreeBSD
Write Test
dd if=/dev/zero of=/usr/test.bin bs=512 count=4096000
dd if=/dev/zero of=/usr/test2.bin bs=512 count=4096000
Read Test
dd if=/usr/test.bin of=/dev/null

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#rpm –import http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka
#vi /etc/yum.repos.d/utterramblings.repo
insert data
[utterramblings]
name=Jason’s Utter Ramblings Repo
baseurl=http://www.jasonlitka.com/media/EL$releasever/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka

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