Hibernation Execution Interval based Hybrid Boot for Baseboard Management Controllers

The Baseboard Management Controller1 (BMC) reduces the operating cost of the server because it enables remote monitoring of the server. In order to reduce the boot time of the BMC, the hibernation technique has been applied for the fast boot of the BMC. However, it is difficult to apply the existing hibernation technique to the BMC as it is because the boot time may be longer than the cold boot since memory usage is not constant for each BMC. In this paper, we propose a hybrid boot technique that selects the faster boot between cold boot and hibernation-based boot based on the proper hibernation execution periodic interval. The proposed technique can perform boot at a point where the boot time is expected to be the minimum by checking memory usage. The experimental results show that the proposed hybrid boot technique can reduce the total boot time significantly compared to cold boot.