[Xen-devel] Can i lively migrate a vm used the vhd file be it's disk?

[张勇 <zileiye@xxxxxxxxx>]

Hi all~:

  I know we should use network storage to support live migrate,such as nfs,nbd.

  But same time we want to use the  vhd file with advanced features to be a disk.

  So, i first connect to a nbd server from A,and mount /dev/nbd0 to /mnt/nbd0,then

create a vhd file at /mnt/nbd0 to be used by vm. When i want to  migrate it to B,

i should get the vhd file by connect to the nbd server from B,and mount /dev/nbd0

to /mnt/nbd0 of B.Unfortunatly this way can't work.

  When i read the code about 'xm migrate', i find remote pc had create device before

pre-copy memory...

  Should you tell me how can i migrate  a vm used vhd lively ?Thx~~

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