Hi,

this is a disk space warning. If the MONs get below 30% free disk space you'll get a warning since a MON store can grow in case of recovery for a longer period of time. Use 'df -h' and you'll probably see /var/lib/containers/ with less than 30% free space. You can either decrease this threshold if you're sure it won't grow too fast, it's this config:

    "mon_data_avail_warn": "30",

Or you increase the disk space on that node.

Regards,
Eugen


Zitat von Michel Niyoyita <mico...@gmail.com>:

Dear Team ,

I have a warning  on my cluster which I deployed using Ansible on ubuntu
20.04 and with pacific ceph version , which says :

root@ceph-mon1:~# ceph health detail
HEALTH_WARN mon ceph-mon1 is low on available space
[WRN] MON_DISK_LOW: mon ceph-mon1 is low on available space
    mon.ceph-mon1 has 28% avail

Can anyone help me to solve this? which command should run to solve this
problem?, I tried : ceph tell mon.ceph-mon1 compact , but no
favourite result.

Kindly advise

Michel
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