does not display information about the individual volumes on each disk if a volume manager is used . The vxstat command can be used to show this information instead. In contrast, when using Linux LVM as a volume manager, iostat does display volume information individually, because each logical volume has its own device mapper (dm) device. See also Disk-drive performance characteristics mpstat netstat sar (Unix) systat vmstat References External links FreeBSD iostat(8) manual page Solaris iostat(1M) manual page Linux iostat manual page Mac OS X iostat manual page Unix file system-related software System monitors Computer performance System administration