Ingo Jochim created CLOUDSTACK-8587:
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             Summary: Storage migration issue on secondary storage
                 Key: CLOUDSTACK-8587
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8587
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Storage Controller
    Affects Versions: 4.4.1
         Environment: ACS 4.4.1; NFS Server, Ceph Cluster
            Reporter: Ingo Jochim


On storage migration from NFS to Ceph ACS seems to use the secondary storage to 
temporary store the block device on converting from qcow2 to raw. There seems 
to be no check on the available space on the secondary storage. If the migrated 
volume is bigger than the free space on secondary volume the migration will 
start and fail as soon as the secondary storage got completely filled. After 
the error message the file copied so far still exists. The usage on the 
secondary storage stays at 100%.



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