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A.9
File System Main Specifications
Operating systems allow you to work with data by supporting a file system on a
disk partition.
All file systems contain structures required for data storage and control.
These structures usually consist of OS boot record, files and folders. A file
system performs the following main functions:
1.
Monitors used and free disk space (including bad sectors).
2.
Maintains folders and filenames.
3.
Monitors physical file location on a disk.
Different operating systems use different file systems. One operating system
may support only one file system; others may support several.
A.9.1
File system specification summary
Below is a summary of the most popular file systems. Each system is briefly
commented. This information can help you work with Acronis PartitionExpert.
Table 1. Windows file systems.
File system
Operating systems
Max. partition size
Max. file size
Max. filename length
Restoration (logging)
Max. files in root
Max. clusters/blocks
Cluster/block size
File record table/I-node
72
Appendix A : Hard Disk And Operating System
FAT16
Windows
Almost all
95OSR2/98/Me,
2000/XP, Linux
4 GB (2 GB
2 TB
for
Windows
95OSR2/98/Me)
Limited by parti-
4 GB
tion size
255
255
No
No
Set at formatting
Unlimited
16
28
~2
~2
512 Bytes – 64
512 bytes – 64
KB
KB
No
No
FAT32
NTFS
Windows
NT/2000/XP,
Linux (for read-
ing)
16 EB
Limited by parti-
tion size
32767
Yes
Unlimited
48
~2
512 bytes – 64
KB
Dynamic
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