asheswook opened a new issue, #11273:
URL: https://github.com/apache/cloudstack/issues/11273
## Description
In a CloudStack environment using KVM, I have set up a Shared Mountpoint
primary storage backed by DRBD + LVM and formatted with GFS2. While the primary
storage is detected and shows as "Up" in the UI, it doesn't actually work as
primary storage.
- The system continues to repeatedly attempt system VM creation. (Every time
system VM is in "Starting")
- No files are being created on the storage path even though the pool
appears online.
- I referred to the cloudstack official quick start guide and kvm device
setup guide. All settings look normal.
- I watched this problem for a few days and I know that it's not resolved
after reboot or time.
### What I have checked
- Permission is 777.
- SELinux `setenforce 0`.
- GFS2 status: GFS2 is mounted and functioning on both nodes.
- DRBD status: DRBD volume is Primary/UpToDate on both nodes.
- Read/Write test. Both nodes can successfully read and write to the shared
mountpoint (`/mnt/ssd_primary`)
- I tried to create a volume manually via Libvirt (virsh), It works
perfectly (I can see a volume file created on the `/mnt/ssd_primary`).
- No firewalld, iptables.
### Observations
The following log entry repeats in agent.log:
```
2025-07-23 19:37:29,923 INFO [kvm.storage.LibvirtStorageAdaptor]
(AgentRequest-Handler-5:[]) (logid:) Asking libvirt to refresh storage pool
ebdbe393-d6c1-4f2c-963b-5dd5a796e90f
2025-07-23 19:40:33,085 INFO [kvm.storage.LibvirtStorageAdaptor]
(AgentRequest-Handler-1:[]) (logid:) Trying to fetch storage pool
ebdbe393-d6c1-4f2c-963b-5dd5a796e90f from libvirt
2025-07-23 19:40:33,086 INFO [kvm.storage.LibvirtStorageAdaptor]
(AgentRequest-Handler-1:[]) (logid:) Asking libvirt to refresh storage pool
ebdbe393-d6c1-4f2c-963b-5dd5a796e90f
2025-07-23 19:41:34,138 INFO [kvm.storage.LibvirtStorageAdaptor]
(AgentRequest-Handler-2:[]) (logid:) Trying to fetch storage pool
ebdbe393-d6c1-4f2c-963b-5dd5a796e90f from libvirt
```
virsh:
```
virsh pool-info ebdbe393-d6c1-4f2c-963b-5dd5a796e90f
State: running
Capacity: 1.73 TiB
Allocation: 259.22 MiB
Available: 1.73 TiB
virsh vol-list ebdbe393-d6c1-4f2c-963b-5dd5a796e90f
(no volumes)
```
### Environment
- Rocky Linux 9.6
- KVM
- CloudStack 4.20.1.0
- DRBD 9.2.1.4, LVM, GFS2 (I don't think this will be the problem because
many times I have previously checked that the volume is created and that both
nodes work without lock issues)
```
[root@node1 ~]# rpm -qa | grep -E "cloudstack|libvirt"
cloudstack-common-4.20.1.0-1.noarch
cloudstack-management-4.20.1.0-1.noarch
libvirt-libs-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-log-10.10.0-7.3.el9_6.x86_64
libvirt-client-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-common-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-core-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-rbd-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-nwfilter-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-network-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-lock-10.10.0-7.3.el9_6.x86_64
python3-libvirt-10.10.0-1.el9.x86_64
libvirt-client-qemu-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-plugin-lockd-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-config-network-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-config-nwfilter-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-logical-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-mpath-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-scsi-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-disk-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-nodedev-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-interface-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-secret-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-proxy-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-qemu-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-iscsi-10.10.0-7.3.el9_6.x86_64
libvirt-daemon-driver-storage-10.10.0-7.3.el9_6.x86_64
libvirt-10.10.0-7.3.el9_6.x86_64
cloudstack-agent-4.20.1.0-1.noarch
```
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