On 03/17/2016 06:07 PM, Alberto Garcia wrote: > On Thu 17 Mar 2016 10:56:09 AM CET, Wen Congyang wrote: >>> We should have the failure modes documented, and how you'll use it >>> after failover etc Without that it's really difficult to tell if this >>> naming is right. >> >> For COLO, children.0 is the real disk, children.1 is replication >> driver. After failure, children.1 will be removed by the user. If we >> want to continue do COLO, we need add a new children.1 again. > > What if children.0 fails ?
For COLO, reading from children.1 always fails. if children.0 fails, it means that reading from the disk fails. The guest vm will see the I/O error. Thanks Wen Congyang > > Berto > > > . >
