Wrong size reported by CEPH

deepcloud

Active Member
Feb 12, 2021
138
24
38
India
deepcloud.in
Hello,

We have been using Proxmox for a long time along with ceph. but I feel the report of the space usage by Proxmox is misleading.

for eg. we have a 3 node cluster with 3 disks of 7.68TB NVMe on it. now we have a 3 way replicated pool which means we should have 1/3rd the capacity of 3 drives which is 1 drive.
since the 7.68TB is reported as 6.99TB (due to 1024x1024x1024 vs 1000x1000x1000). we should see the total usable capacity as 6.99TB but we see proxmox reporting it as 13.6TB which is misleading.

see the attached screenshots below. I think you are adding the capacity of both the cephfs and rbd pools which is wrong.

Thanks
Team Deepcloud

PHOTO-2025-09-13-13-00-05.jpgPHOTO-2025-09-13-13-02-35.jpgPHOTO-2025-09-13-13-02-59.jpg
 
At the top right, in your user menu, check "My Settings - Webinterface Settings - Dashboard Storages". Possibly the same storage is summed up more than once.

Just guessing..., I am not using Ceph currently.