Delays or errors while accessing a file.
Standard
copy, move or delete operations may produce
prolonged delays as the drive tries to access
the data yet
cannot read from the it's platters effectively.
The drive makes unusual or no
sounds.
A single knocking
or rhythmic "Click, Clock" sounds
are sure signs that a drive is experiencing mechanical
problems. When no sound is heard from the drive there
is also a major mechanical or electrical malfunction.
Boot up error messages
A catastrophic head
crash will often be reported with an
error message equal to: "No operating system found"
or
"Non system disk". As illustrated in the
image at left. A
head crash is a major malfunction of a hard disk drive.
Ever
increasing bad sectors
Ever increasing
bad sectors found on a hard disk drive are a
sure sign of a hard drives imminent failure. All remaining
readable data should be copied to another storage device
immediately and the failing drive should be replaced.