Currently, this can only be done by hand. Maybe we need some scripts to handle this automatically. I don't know if https://github.com/ceph/ceph/tree/master/src/pybind/mgr/balancer can handle this. ________________________________________ From: Konstantin Shalygin <k0ste@xxxxxxxx> Sent: Thursday, April 12, 2018 12:00 To: ceph-users@xxxxxxxxxxxxxx Cc: ?? ? Subject: Re: osds with different disk sizes may killing performance On 04/12/2018 10:58 AM, ?? ? wrote: > Yes, according to crush algorithms, large drives are given high weight, this is expected. By default, crush gives no consideration of each drive's performance, which may cause the performance distribution is not balanced. And the highest io util osd may slow down the whole cluster. You can control 'how much use' drive via adjusting crush weights. k _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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