SIGuardian is the only tool what allows you to full control health of your HDDs and prevent data loss of failures. Using S.M.A.R.T. technology included in all modern HDDs SIGuadian predicts end date of HDD lifetime, so you can make backup copy of all data. Only SIGuardian can show full information about S.M.A.R.T. - attribute values, worst and threshold values and many more