Chapter 2 - Data and Data Processing
Completion requirements
Chapter 2 Part 4 Data management - File system
Part 4: Data management - File system
Sectors
Boot sector
- The boot sector contains information about the partition and
- Block size, (size of the storage units, files are distributed across many clusters in order to use the storage space effectively)
- Volume size (total size of the partition)
- Position of the Master File Table (MFT)
- Starts the boot loader of the operating system if the partition is bootable.
- The boot loader is a program that is responsible for starting the operating system (in this case Windows).
File information sector
- Saves Metadata of the stored files like:
- Name, Permissions, Owner/Group, Time Stamps, …
- Contains the addresses of the memory blocks (clusters) in which the data of the files are stored.
- Blocks allow the effective storage of files on storage media
- Blocks can be directly and indirectly adressed
- This allows the storage ob big files
- The maximum size of files depends on the size of the memory blocks
Data sector (file area)
- The data sector is divided into blocks.
- Contains the data of all files and directories.
- The smallest unit with which NTFS stores data.
- A block has a fixed size (typically 4 KB). Large files are distributed across several clusters.
- A file always occupies at least one block.