Upon GC at the Virtlet startup, the virtual block devices that are
created by Virtlet are recognized by name and the sector 0 of underlying
block device (Virtlet magic header). If they're not related to any
active domain, they're removed (note that this doesn't mean the data on
the device is affected in any way).
Upon GC at the Virtlet startup, the virtual block devices that are created by Virtlet are recognized by name and the sector 0 of underlying block device (Virtlet magic header). If they're not related to any active domain, they're removed (note that this doesn't mean the data on the device is affected in any way).
This change is