Re: features required for live migration

Konstantin Shalygin <k0ste@xxxxxxxx> · Tue, 14 Nov 2017 17:32:10 +0700



    For understanding: live migration is just
        the same run like clean run from powered off state, exception
        only the copying memory from one host to another, i.e. if your
        VM start from powered off state, than live migration should
        works without any issues.
    Also, client must be compatible with the
          features, otherwise qemu will not be able to work with the
          rbd. For this reason, there is an option that
          indicates the default features when creating a volume - if not
          possible to upgrade librbd on host (or any other component),
          the features can be customized for the present librbd.
    

    On 11/14/2017 04:41 PM, Oscar Segarra
      wrote:

    
      Yes, but looks lots of features like snapshot, fast-diff
        require some other features... If I enable exclusive-locking or
        journaling, live migration will be possible too?
      

      Is it recommended to set KVM disk "shareable" depending on
        the activated features?
    
    
    -- 
Best regards,
Konstantin Shalygin

  
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com