On 07/01/2015 03:01 AM, Dr. David Alan Gilbert wrote: > * Wen Congyang (we...@cn.fujitsu.com) wrote: >> On 06/27/2015 03:03 AM, Dr. David Alan Gilbert wrote: > > <snip> > >>> Ah, I hadn't realised you could do that; so do you just do: >>> >>> migrate_set_parameter colo on >>> migrate -d -b tcp:otherhhost:port >>> >>> How does the secondary know to feed that data straight into the disk without >>> recording all the old data into the hidden-disk ? >> >> hidden disk and active disk will be made empty when starting block >> replication. > > Hmm, yes - I think I need to update to your current world; in the version > from the end of May, I get a 'error while loading state for instance 0x0 of > device 'block'' > if I try to use migrate -d -b > (the bdrv_write fails)
Can you give me both primary and secondary qemu's command? I think the command line is wrong, and disk migration fails. > >>>> If the user uses mirror job, we don't cancel the mirror job now. >>> >>> It would be good to get it to work with mirror, that seems preferred these >>> days to the old block migration. >> >> In normal migration, is mirror job created and cancelled by libvirt? > > Yes, I think so; you should be able to turn on full logging on libvirt and > watch the qmp commands it sends. Supporting mirror job in my TODO list now. But I think we should focus the basci function now. Thanks Wen Congyang > > Dave > > -- > Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK > . >
