Hi As a result of applying a Silence, they correctly appear on the Observability\Alerts screen as "suppressed". However they still appear on the home page Dashboard, in the top-centre Status panel: Thanks, Chris On 05/02/2026 16:10, Ankush Behl wrote:

Hi Chris, do you mean they show up in overview dashboard? Can you show via some screenshots where all they are coming up?

On Thu, 5 Feb 2026 at 6:39 PM, Chris Palmer via ceph-users <ceph-users@ceph.io> wrote:

cephadm (squid & tentacle) deploys alertmanager with some default alerts. One is CephNodeInconsistentMTU which checks if the MTU of each interface with the same name is the same across the cluster.

However if your cluster nodes are not identical, and have differing interface names, we end up with lots of permanent alerts. Although I can silence the alert (matching the alert name) for a long time, they still show up in the dashboard.

The alerts are different permutations of:

     Node ceph3 has a different MTU size (1500) than the median of devices named enp4s0.

Since that check is inappropriate in a heterogeneous cluster, what's the recommended way of disabling it, which won't get overwritten with redeployment of the monitoring stack?

Thanks, Chris _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io