An effective way for updating system image at operating system boot time
Original Publication Date: 2004-Oct-22
Included in the Prior Art Database: 2004-Oct-22
Disclosed is a method of disk access detection by using S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology) information (for example, power on count, write count etc.) and its usage. S.M.A.R.T enables hard disks to monitor their activities such as power cycle count, power-on hours, throughput, start/stop count etc., and log them. Since only micro code of hard disks can write S.M.A.R.T log, operating systems and applications cannot interpolate the S.M.A.R.T log. Therefore, the trusted software can detect illegal access to hard disks occurred between the last shutdown time and now by monitoring S.M.A.R.T information such as power-on count/write count.