tool, provided by the sysstat
package, monitors and reports on system input/output device loading to help administrators make decisions about how to balance input/output load between physical disks. The iostat
tool reports on processor or device utilization since iostat
was last run, or since boot. You can focus the output of these reports on specific devices by using the parameters defined in the iostat(1)
manual page. For detailed information on the
value and what can cause its values to be high, see the following Red Hat Knowledgebase article: What exactly is the meaning of value "await" reported by iostat?