As new servers have been introduced and installed in a computer room which already has various servers, many problems, such as a lack of room space, a lack of rack space, and a rise in power consumption, have arisen. The increasing number of operators and rising cost of maintenance caused by the problems lead into a rise in IT expenditure for the computer room. To solve the problems, server integration & virtualization technology, which is used to save power consumption and space and reduce maintenance cost, has gradually been expanding. In this paper, old six UNIX servers were integrated into two in the virtualization process of UNIX servers, in which one partition (DLPAR) per server was created, and more than three DB instances were generated in the created partition for DBMS. As a result, multiple physical servers were made as integrated virtualization servers which ended up solving the space problem in a computer room, securing a rack space and increasing the efficiency of a thermo-hygrostat. More specifically, the server integration & virtualization process brought about the following saving rates: 72% of rack space (U) in a computer room, 90% of power (W), and 59% of cooling (BTU).

Abstract. It is possible for virtualization of desktop to dramatically reduce maintenance costs and improve the security using various virtualization techniques rather than previous desktop environments. In this paper, with the desktop virtualization, the power saving effects are obtained from 67,750(kW) to 7,300(kW) , which is from 480(w) to 50 (w) for using one desktop for 8 hours per a day. As a result of this, the security is improved greatly by data centralization, which the user can access the main server as a thin client with given space.

Abstract. This paper has developed the circuit of equipment for CCTV operation and detecting failure, which enables to identify in naked eye failure of CCTV which is used to protect public facility and prevent safety accident. It is designed with shunt which has 0.5ohm, maximum current of 1A and over 0.5W class(P = 1A 2 * 0.5 and 10bit ADC in which built in MCU. Also current has been designated using VR(Voltage Regulator) as reference current. Status light of voltage and current is 2 color LED while green color means normal status and red color does abnormal status.

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