Sectors Addresses

LBA addresses.

• maps the physical sectors of the drive.

• the first sector is always 0 (zero).

• it cannot be used to address volume sectors.

  • a volume is a collection of sectors, but.

  • may not be consecutive and can even be in different drives.

Layers of addresses.

• physical address.

• logical disk volume addresses – equal to the physical address.

• logical volume partition addresses – each partition has its own address space.