Re: moving qcow2 image of a VM/guest (

Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx> · Sat, 9 Apr 2016 23:45:52 +1000



    On 9/04/2016 11:01 PM, Mad Th wrote:

    
      After this
            move, does the qcow2 image get converted to some raw or rbd
            file format?
    
    
    raw (rbd block)

    
      Will
            moving vm/quest  images to  ceph storage pool  after
            converting qcow2 to raw format first , improve performance?
    
    
    I doubt it.

    
    We

        still see some i/o lag in our 3node proxmox/ceph cluster (12
        OSD) ....  4x4TB disk with 7200 rpm, 1 SSD disk for
        journallling, 1SSD for proxmox  on each of the 3 nodes , each
        server with 64G ram, Intel Dual
          E5-2620v3 (2x 2.4Ghz Hex-Core + HT)  x2 (total 24core  ) on
          each server.
    

    You didn't mention your network setup, also what SSD model are you
    usng?

    
    -- 
Lindsay Mathieson
  

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