Marek Szuba via ceph-users <ceph-users@ceph.io> writes:

A few weeks ago I came across in Tentacle documentation on docs.ceph.org (and OF COURSE now that I'm trying to quote it, I cannot find it any more) a mention that CephFS should not be mounted on systems serving Ceph because of there being a risk of harmful interference in the kernel. The context suggested this pertained to one-node Ceph clusters, that said I do not believe that was explicitly stated. Therefore, I very much hope someone will be able to enlighten me whether:

Maybe it was this page: https://docs.ceph.com/en/squid/rados/troubleshooting/troubleshooting-pg/ -- Stefan