How to increase the storage of volumes in PackStack
Hi, I installed OpenStack RDO on one node. The size of the root OS was 460GB (as shown in the horizon dashboard). I launched 18 instances with a volume size of 20GB. In the overview part of the dashboard, it shows I used 360GB of volume storage. There is no data in instances (just OS files). But when I try to launch a new instance with the size of 20GB it errors on creating volume. I checked the nova and cinder logs but they didn't contain something special about the error.
Just for a test, I tried to create volumes with the size of 15GB and 10GB and no error happened, so I guess we have a capacity problem. I checked the compute OS storage status, but it has so much capacity! I guess OpenStack configure just a part of the compute disk for volumes and I don't know where OpenStack store them. I only found a path in the /dev/cinder-volumes that contains volume ids but it's just a link!
Note: I found this error on cinder scheduler :
Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid backend was found
Here is the result of the command vgs:
VG #PV #LV #SN Attr VSize VFree
centos 1 3 0 wz--n- <464.76g 4.00m
centos_host-192-168-0-199 1 4 0 wz--n- <19.00g 0
cinder-volumes 1 20 0 wz--n- <20.60g 1012.00m
How can I increase the storage of cinder volumes?