Hi, After a disk failure, the number of PGs not deep scrubbed started to increase (Ceph Quincy). Here is an example PG: https://gist.githubusercontent.com/Badb0yBadb0y/afe9b26fbae72c79c9430585bf4e... Normally, when this happens, I observe some stuck operations and increased latency on certain OSDs (restarting the affected OSD usually resolves the issue, and the not deep-scrubbed PGs get scrubbed within a day). However, this time I don’t see any obvious problems. Could you please help review the attached not deep-scrubbed PG and let me know if you notice anything unusual? For context, the disk was re-added yesterday and rebalance is still in progress, but the not deep-scrubbed alerts started appearing before the disk was added back. Thank you. ________________________________ This message is confidential and is for the sole use of the intended recipient(s). It may also be privileged or otherwise protected by copyright or other legal rules. If you have received it by mistake please let us know by reply email and delete it from your system. It is prohibited to copy this message or disclose its content to anyone. Any confidentiality or privilege is not waived or lost by any mistaken delivery or unauthorized disclosure of the message. All messages sent to and from Agoda may be monitored to ensure compliance with company policies, to protect the company's interests and to remove potential malware. Electronic messages may be intercepted, amended, lost or deleted, or contain viruses.