You could probably cut the overhead in half with the inline data feature: http://docs.ceph.com/docs/master/cephfs/experimental-features/#inline-data However, that is an experimental feature. CephFS is unfortunately not very good at storing lots of small files in a storage-efficient manner :( Paul 2018-09-04 17:31 GMT+02:00 andrew w goussakovski <gusakovskiy.a@xxxxxxxxx>: > Hello > > We are trying to use cephfs as storage for web graphics, such as > thumbnails and so on. > Is there any way to reduse overhead on storage? On test cluster we have > 1 fs, 2 pools (meta and data) with replica size = 2 > > objects: 1.02 M objects, 1.1 GiB > usage: 144 GiB used, 27 GiB / 172 GiB avail > > So we have (144/2)/1.1*100%=6500% overhead. > > ceph version 13.2.1 (5533ecdc0fda920179d7ad84e0aa65a127b20d77) mimic > (stable) > osd storage - bluestore (changing bluestore_min_alloc_size makes no > visible effect) > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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