An electrical safety device is disclosed which utilizes a sensor conductor configured in a continuous loop and disposed in an electrical component so as to sense overtemperature or mechanical damage over a length or wide area of the component. In response to a reception of a program record, the program record module converts each key field of the program record into a feature value. A combination of the logical port and the logical volume having a high frequency of data transfer between the storage system units are detected with reference to the collected access information and the logical port is remapped or the logical volume between the storage system units is remapped. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal.