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)
You definitely should use S3 for this case, because S3 is Simple Storage Service for web in first.
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