To add to Artie's comment, according to a study of hard drive failures run by Google Labs, NEW bad data blocks on a drive are the single best indicator of impending drive failure within the next 60 days. Because of the threshold set by the drive manufacturers, S.M.A.R.T. values are virtually useless to indicate anything other than the drive has already failed.

Unfortunately, there are no effective free or cheap tools available that will perform a surface scan. Checkmate performs periodic routine surface scans of internal and attached HDDs and SSDs and is the least expensive I have found. TechTool Pro or Drive Genius will perform a surface scan on demand. None of these will work on a network drive. frown


"All you've got to do is own up to your ignorance
honestly, and you'll find people who are eager to
fill your head with information"
--Walt Disney