Hello, It's my first patch for Ganeti. It allows to hot resize disks on KVM instances by running the block_resize QMP command. A new parameter (--hot-resize) has been added to gnt-instance grow-disk. It's disabled by default, what do you think about that ?
I would like to have your feedback about this patch before writing some unit tests. I'm also wondering if the grow mechanic should be added to gnt-instance modify. It would be much more natural than a specific command for growing disk
