wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/sysstat-10.1.5-19.el7.x86_64.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/iotop-0.6-4.el7.noarch.rpm
wget https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/lsof-4.87-6.el7.x86_64.rpm

wget http://mirrors.163.com/centos/7/os/x86_64/Packages/sysstat-10.1.5-19.el7.x86_64.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/iotop-0.6-4.el7.noarch.rpm
wget http://mirrors.163.com/centos/7/os/x86_64/Packages/lsof-4.87-6.el7.x86_64.rpm