Lenovo computer prompts a warning when detecting hard drive "OB attempts to correct again"

Some hard disks may find an alarm when detecting with a detection tool, "(OB) attempts to correct the number of times", as shown in the following figure:

Definition: calibration retry count refers to the number of times the head fails to be read and written again, and not all manufacturers' hard disks have this parameter.

This phenomenon is generally caused by the following reasons:

1. When a sudden power failure occurs during use, the head does not fall back into the safe area, and the disk chip will record the "number of attempts to correct ";

2. Before leaving the factory, the hard disk will undergo various detection and tests, including operations such as abnormal power failure, that is, generating a count;

3. In addition, if some hard drive manufacturers such as Seagate encounter this phenomenon, it is caused by the earthquake arm reset technology. This phenomenon is mostly a false positive and does not need to be worried.

Solution:

Observe the count value of "number of attempts to correct again". If the value remains unchanged, do not worry. This is not a hard disk fault;If this parameter continues to grow, there may be a fault risk. Back up important data on the hard disk in advance..