clusters, pages, sectors in FAT file system

Question

Im trying to understand the concept of a "cluster" in a FAT filesystem. Specifically what is the relationship between a cluster, a Block, A Sector.

My understanding is the following 1) A Block/Page is 4096 bytes and a block is divided into sectors. 2) A sector is the smallest unit of storage on a disc. 3) Data us retrieved and stored in blocks/pages. 4) A disc has tracks and each track has Blocks/pages.

Is my understanding right? Im not sure where a cluster fits into all this.

Can someone clarify my understanding

Answer 1

Quoting from this link:http://cquirke.mvps.org/9x/fat.htm

Cluster: Single unit of data storage at the FATxx file system logic level

Sector: Single unit of storage at the physical disk level

A cluster is the smallest unit of storage the operating system's file system can manage. For example, if a 1KB file is stored in a system with a 32KB cluster size (see table below), the 1KB file takes up 32KB of disk space. Below are the cluster sizes for the FAT32 file systems on Windows computers.

Disk Size          Cluster size

512MB-8GB           4KB
    8-16GB          8KB
   16-32GB         16KB
   32GB+           32KB