Patent ID: 8537480

Claim:
A method for testing a hard drive, the method comprising: determining a first partial bit error rate (PBERT) value of a hard drive at a first temperature and a second PBERT value of the hard drive at a second temperature, wherein the first temperature is greater than the second temperature; determining a PBERT minimum based on the first PBERT value and the second PBERT value; comparing the PBERT minimum to a first PBERT minimum limit; determining a PBERT ratio based on the first PBERT value and the second PBERT value if the PBERT minimum is greater than or equal to the first PBERT minimum limit; comparing the PBERT ratio to a PBERT ratio limit; comparing the PBERT minimum to a second PBERT minimum limit if the PBERT ratio is greater than the PBERT ratio limit; and generating a failure indicator of the hard drive if the PBERT minimum is less than the first PBERT minimum limit and/or the second PBERT minimum limit.