Sometimes you’re working on a machine and miss a certain tool. In my case, it was iostat I missed on a Red Hat server. iostat is a useful tool for a quick look at the I/O statistics of a unix/linux based machine.
Looking for a convenient way to install iostat, my first idea was to yum install iostat, but that didn’t work. With a bit of googling I found that yum install sysstat does the job, as that also installs iostat.
Enjoy.