hmadra opened a new issue, #8032:
URL: https://github.com/apache/cloudstack/issues/8032
##### ISSUE TYPE
Bug Report
##### COMPONENT NAME
Storage Provider
##### CLOUDSTACK VERSION
4.18
##### CONFIGURATION
N/A
<!--
Information about the configuration if relevant, e.g. basic network,
advanced networking, etc. N/A otherwise
-->
##### OS / ENVIRONMENT
AlmaLinux 8
##### SUMMARY
When migrating a Live VM in Qemu/KVM from NFS to LinStor , rather than
creating a drbd resource on the target system ,
Cloudstack is creating a Qemu file in
/var/log/cloudstack/management/cloudstack directory
If there is not enough space in the device with log directory , live
migration fails.
```
Oct 3 20:13:00 host02 journal[44701]: End of file while reading data:
Input/output error
Oct 3 20:13:00 host02 java[44876]: libvirt: error : no connection driver
available for lxc:///
Oct 3 20:13:00 host02 java[44876]: WARN [kvm.resource.LibvirtConnection]
(agentRequest-Handler-1:) (logid:0bbc2885) Can not find a connection for
Instance i-2-42-VM. Assuming the default connection.
Oct 3 20:13:01 host02 journal[44701]: internal error: Child process
(/usr/bin/qemu-img create -f qcow2 -o preallocation=falloc,compat=1.1
/var/log/cloudstack/management/cloudstack/adda192d-a71b-4b7d-8745-f27db392d9a5
20971520K) unexpected exit status 1: qemu-img:
/var/log/cloudstack/management/cloudstack/adda192d-a71b-4b7d-8745-f27db392d9a5:
Could not resize image: Failed to resize underlying file: Could not preallocate
new data: No space left on device
```
However, if there is enough space , It creates a Qcow file in the
/var/log/cloudstack/management/cloudstack/ directory , rather than creating a
DRBD device .
Other DRBD volumes are working fine on the host, and host is connected to
LinStor controller and has other VMs operating normally , when the VM is
created with LinStor as primary storage
`[root@host02 ~]# ls -l /var/log/cloudstack/management/cloudstack/
total 20975620
-rw------- 1 root root 21478375424 Oct 3 20:30
46552b99-bd33-471f-897b-7f8de9065725
[root@host02 ~]#
`
##### EXPECTED RESULTS
During Live migration + Storage migration, Cloudstack should create a DRBD
resource on the target host and move the disk image to LinStore DRBD Device.
~~~
~~~
``
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