HDDs of exactly 2.0 TB have: 3,906,250,000 sectors. HDDs of exactly 3.0 TB have: 5,859,375,000 sectors. This data depends upon 1 GB = 1,000,000,000 bytes, and 512-byte sectors. But real hard disks rarely contain the exact values above!
Then, how many sectors are there in a track on a hard disk?
There can be more than a thousand tracks on a 3.5-inch hard disk. Sections within each track are called sectors. A sector is the smallest physical storage unit on a disk, and is almost always 512 bytes (0.5 kB) in size.
How many sectors are in a cluster?
On a disk that uses 512-byte sectors, a 512-byte cluster contains one sector, whereas a 4-kibibyte (KiB) cluster contains eight sectors. A cluster is the smallest logical amount of disk space that can be allocated to hold a file.
What are tracks and sectors on a hard disk?
Each track is divided into sectors. A sector, as a rule, holds 512 bytes of data, this is usually the minimum quantity of information which is independently addressable for storage on a hard drive disk. Today, hard drive platters have thousands of sectors in a single track.