Hello, i have a small ceph cluster running with CentOS 7.5
Ceph release is: ceph --version ceph version 13.2.1 (5533ecdc0fda920179d7ad84e0aa65a127b20d77) mimic (stable) I have one pool with 13 images. All images have same features enabled and are used by a openshift origin 3.9 as client. For three out of 13 images in the same pool, I can´t create snapshots - not via the gui nor via cli. The problem was also there with v. 13.2.0. As we use the krbd from the standard CentOS kernel, I am not able to do mirroring and need the snapshot feature to do some backups. As I am pretty new into ceph, I don´t know exactly, how I can debug the problem further. Thanks Alex
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