How to acknowledge and clear Ceph osd crashed errors in Proxmox VE

    When a Ceph OSD daemon crashes, you may see the following warning in your Proxmox environment:

    HEALTH_WARN: 1 daemons have recently crashed
osd.3 crashed on host sm01d at 2025-01-26T17:43:41.644866Z

    Follow these steps to resolve the issue:

    1. Check the Crash Logs

    First, identify the crash details by listing recent crashes:

    ceph crash ls

    To get more information about a specific crash:

    ceph crash info <CRASH_ID>

    Replace <CRASH_ID> with the actual crash ID displayed in the previous command.

    2. Acknowledge the Crash Report

    After reviewing the details, archive the crash report to clear the warning:

    ceph crash archive <CRASH_ID>

    To archive all crash reports at once:

    ceph crash archive-all

    3. Restart the OSD Daemon

    If osd.3 is still down, restart it manually:

    systemctl restart ceph-osd@3

    Check its status:

    systemctl status ceph-osd@3

    4. Verify Ceph Health

    After restarting, check the Ceph cluster’s health:

    ceph health detail
ceph -s

    If the error persists, review system logs for further investigation:

    journalctl -u ceph-osd@3 --no-pager --lines=100

    Published