When taking a back up of data stored on a disk in a redundant array of inexpensive disks device to a plurality of tape devices, writing of the data is first started on all the tape devices. The invention also relates to the catalytic composition thus produced, which has a high specific activity in reactions involving the hydroprocessing of light and intermediate fractions, preferably in reactions involving the hydrotreatment of hydrocarbon streams, including hydrodesulphurization, hydrodenitrogenation and hydro-dearomatization. The RC component maintains a level of charge between ground and a shunt node to ensure that, during an ESD event, electrostatic charge on a power supply, VDD, associated with the ESD structure is shunted via a shunt path from said power supply VDD to said ground. The implementations of the watermark detecting system, described herein, support quick, efficient, and accurate detection of watermarks by the specifically designed watermark detecting system. The coupling agent can be selected from the group consisting of silicone oil, mineral oil, polyethylene glycols, and oils from natural resources. The front portion of said base is connected to the bearing runner by a mechanical connection providing it with clearance ostensibly perpendicular to said runner controlled by a damping device.