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.. _mgr-iostat-overview:
iostat
======
This module shows the current throughput and IOPS done on the Ceph cluster.
Enabling
--------
To check if the *iostat* module is enabled, run::
ceph mgr module ls
The module can be enabled with::
ceph mgr module enable iostat
To execute the module, run::
ceph iostat
To change the frequency at which the statistics are printed, use the ``-p``
option::
ceph iostat -p <period in seconds>
For example, use the following command to print the statistics every 5 seconds::
ceph iostat -p 5
To stop the module, press Ctrl-C.
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