Hi, The scenario requires the association of unused OSDs to a storage tier. For this, the test creates a storage tier in a ceph cluster, which I do and consult this way in CLI: [cid:image002.png@01D4EEDA.52761AA0] Next, the test requires the list of OSDs already created in association with a disk, of which I then take a disk with enough available space to create an OSD into: [cid:image003.png@01D4EEDA.52761AA0] However, in Horizon, I am able to see and create partitions and OSDs in the host detail page for the host that I am modifying here: [cid:image004.png@01D4EEDA.52761AA0] But the only place where I am able to see the storage tiers and clusters is in the Storage Overview tab under Platform, and I am unable to modify anything from it within this page: [cid:image005.png@01D4EEDA.52761AA0] My question would be regarding where else I could find the option to create the storage tier within the ceph_cluster in Horizon, and if there is no way to do it from Horizon, if I could create the tier through CLI commands and then update the OSDs through Horizon instead. [cid:image001.png@01CF8BAC.3B4C5DD0] Martinez Monroy, Elio. QA Engineer.