What Is Disk Staging?

Sector refers to the area divided on the disk. Each track on a magnetic disk is equally divided into several arcs. These arcs are sectors of the magnetic disk. The hard disk is read and written based on sectors. ^[1]

Sectors that cannot be accessed or read / written correctly on the hard disk are called Badsector. A sector can store 512Bytes of data. If any byte in a certain sector cannot be read and written correctly, the sector is a Badsector. In addition to storing 512Bytes

hard disk

Each sector also has dozens of Bytes information, including identification (ID), check value and other information. An error in any one byte of this information will cause the sector to become "Bad". For example, in the process of low-level formatting, each sector is assigned a number and written in the ID. If the ID part is wrong and this sector cannot be accessed, then this sector belongs to Badsector. There are some Badsectors that can correct this by rewriting this information with low-level formatting.