Case:
Dell server SAS hard disk ST3146855SS, cannot enter the system after a restart, the hard disk cannot be recognized, so carry the hard disk to the data recovery center
Solution:
The hard disk is the Dell server SAS hard disk, the Seagate ST3146855SS, after the engineer’s power generation test, the hard disk rotation is normal, the hard disk model capacity cannot be recognized.a feeling of.Before the data recovery center, customers had visited other data recovery companies. They were told that the magnetic head was bad, and China’s technical force could not be restored.If it is a magnetic head, it is true that the hard disk replacing the magnetic head is difficult to succeed.Fortunately, the engineer judged carefully, and did not think it was a hard disk magnetic head failure. The failure of the magnetic head drive circuit part of the hard disk circuit board was more likely. After changing the circuit board and the circuit board ROM, the hard disk had the initialization of the magnetic head.The model capacity is successfully identified and the data recovery is successful.