Abstract: A virtual machine (VM) is migrated from a source host to a destination host in a virtualized computing system, the VM having a plurality of virtual central processing units (CPUs). The method includes copying, by VM migration software executing in the source host and the destination host, memory of the VM from the source host to the destination host by installing, at the source host, write traces spanning all of the memory and then copying the memory from the source host to the destination host over a plurality of iterations; and performing switch-over, by the VM migration software, to quiesce the VM in the source host and resume the VM in the destination host. The VM migration software installs write traces using less than all of the virtual CPUs, and using trace granularity larger than a smallest page granularity.

Abstract: This invention is an improvement of an internal lighting system for rural mailboxes. The improvement provides a maintenance-free mailbox internal lighting system by providing a solar cell charging system and rechargeable batteries to the circuitry. The internal light is automatically actuated by the opening of the door. All the components of the internal lighting system are undetectable to the casual observer to provide a degree of protection from vandalism or theft.

Abstract: A rail launcher for a guided missile is shown to include a pair of movable sections, each actuable first to form a gap in an otherwise continuous rail for receiving a lug affixed to a guided missile and then to return to an initial position, capturing such lug and forming a track.