ceph version is: 16.2.10 Use “rclone” tools to upload the big object: rclone copy ./zh-cn_windows_10_business_editions_version_21h1_updated_jul_2021_x64_dvd_f49026f5.iso smd:test --progres Transferred: 670 MiB / 5.293 GiB, 12%, 15.195 MiB/s, ETA 5m12s Transferred: 0 / 1, 0% Elapsed time: 46.0s Transferring: * zh-cn_windows_10_busin…1_x64_dvd_f49026f5.iso: 12% /5.293Gi, 15.195Mi/s, 5m12s The speed is: 15MB/s But at the beginning the speed can reach 100MB/s