What is a hard disk remapping and a pending mapping?

There are two important indicators in the hard drive detection-remapping and mapping, which are often mentioned by the master, but do you know what remapping is and what is to be mapped?

Lifting the remapping also takes the hard drive's bad protection mechanism first. Hard drive production received process constraints and other factors just produced a hard drive will have a part of the bad way. So the hard drive to go through the aging test, the bad place to write a called P table, so that the hard disk in the use of the time will skip these bad places.

Of course, the use of the hard drive will continue to be lost, when there are new bad way out of the current hard drive will write these places into a place called G-table, and call the same size of backup space to replace this position (logically), Each time the hard drive needs to read and write to the area recorded in the G table, the hard drive will reposition the read and write location to the backup space of this part of the area, which is called remapping.

Because the backup space is limited (generally not small) so when the space of the remapping reaches a certain limit, the backup space runs out and the hard disk data will be lost. Then you should consider changing your hard drive.

And what's meant to be mapped is that the hard drive has been checked into this place is broken, but not sure if the logical damage (repair or use) or physical damage (can only be remapping) at this time does not map the area, so called to map, when the attempt to read and write this area, the hard drive will first try to repair, If it is a logical error can be repaired and then used, if the physical damage will become a remapping.