On 2015年12月02日 01:31, Somnath Roy wrote: > This is xfs metadata sync process...when it is waking up and there are lot of data to sync it will throttle all the process accessing the drive...There are some xfs settings to control the behavior, but you can't stop that May I ask how to tune the xfs settings? Thanks! _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com