управление статистикой картографа (mapper statistics management)
Описание (Description)
The dmstats program manages IO statistics regions for devices
that use the device-mapper driver. Statistics regions may be
created, deleted, listed and reported on using the tool.
The first argument to dmstats is a command.
The second argument is the device name, uuid or major and minor
numbers.
Further options permit the selection of regions, output format
control, and reporting behaviour.
When no device argument is given dmstats will by default operate
on all device-mapper devices present. The create and delete
commands require the use of --alldevices when used in this way.
