abh1sar commented on issue #10487:
URL: https://github.com/apache/cloudstack/issues/10487#issuecomment-2721100261
@kladderadeng can you please check if the
`/tmp/csbackup.rwEm9/i-2-10-VM/2025.03.01.17.58.06/root.dda8b221-33ea-4fd4-b8df-f8b2fc3b96b4.qcow2`
file is existing on the NAS server? If yes, what is the owner and permission
on the file?
You can try mounting the nas repository on the kvm host manually and giving
the virsh backup command and share the result.
For example,
```
virsh list
Id Name State
---------------------------
1 s-1-VM running
2 v-2-VM running
3 r-4-VM running
4 i-2-12-VM running
virsh domblklist i-2-12-VM
Target Source
------------------------------------------------------------------------------------------
vda
/mnt/1fafa00c-f655-3fe9-9cb4-31765495245f/14ce38cd-0522-4172-b880-248d08cabeea
hdc -
virsh backup-begin <vm_name> --backupxml backup.xml
backup.xml
<backup>
<disk name='vda' type='file'>
<source
file='/mnt/1fafa00c-f655-3fe9-9cb4-31765495245f/14ce38cd-0522-4172-b880-248d08cabeea'/>
<target file='/mnt/nas-repo/root-backup,qcow2'/>
</disk>
</backup>
```
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