Hi everyone, After trigger command radosgw-admin sync error list, Ceph returns the list of errors for each shards in the system e.g., { "shard_id": 30, "entries": [ { "id": "1_1592308047.968415_451.1", "section": "data", "name": "portal-images:76fc5fe2-9f89-4419-b611-ab275000b358.405220.1:8", "timestamp": "2020-06-16T11:47:27.968415Z", "info": { "source_zone": "30bae889-dc13-4957-a536-028394095356", "error_code": 5, "message": "failed to sync bucket instance: (5) Input/output error" } } ] } For further detail, I triggered the command radosgw-admin data sync status --shard-id=30 --source-zone=dc-02 { "shard_id": 30, "marker": { "status": "full-sync", "marker": "", "next_step_marker": "", "total_entries": 0, "pos": 0, "timestamp": "0.000000" }, "pending_buckets": [], "recovering_buckets": [] } Seems like there is no problem in this shard so far… Can anyone help me on what I have to do to remove the errors above? Many thanks! -- Nghia Viet Tran (Mr) mgm technology partners Vietnam Co. Ltd 7 Phan Châu Trinh Đà Nẵng, Vietnam +84 935905659 nghia.viet.tran@mgm-tp.com<mailto:nghia.viet.tran@mgm-tp.com> www.mgm-tp.com<https://www.mgm-tp.com/en/> Visit us on LinkedIn<https://www.linkedin.com/company/mgm-technology-partners-vietnam-co-ltd> and Facebook<https://www.facebook.com/mgmTechnologyPartnersVietnam>! Innovation Implemented. General Director: Frank Müller Registered office: 7 Pasteur, Hải Châu 1, Hải Châu, Đà Nẵng MST/Tax 0401703955