On 24/04/2015 11:53, Wen Congyang wrote: >> > Only before starting up a new secondary. Basically you do a migration >> > with non-shared storage, and then start the secondary in colo mode. >> > >> > But it's only for the failover case. Quorum (or a new block/colo.c >> > driver or filter) is fine for normal colo operation. > Is nbd+colo needed to connect the NBD server later?
Elsewhere in the thread I proposed a new flag BDRV_O_NO_CONNECT and a new BlockDriver function pointer bdrv_connect. Paolo
