User Guide

Hard Disk And File Systems
90
Copyright © Acronis, Inc., 2000–2010
Table 1. Windows file systems.
File system FAT16 FAT32 NTFS
Operating systems Almost all
Windows
95OSR2/98/Me,
2000/XP, Linux
Windows
NT/2000/XP, Linux
(for reading)
Max. partition size
4 GB (2 GB for
Windows
95OSR2/98/Me)
2 TB 16 EB
Max. file size Limited by
partition size
4 GB
Limited by
partition size
Max. file-name length
255 255 32767
Restoration (logging) No No Yes
Max. files in root Set at formatting Unlimited Unlimited
Max. clusters/blocks
~2
16
~2
28
~2
48
Cluster/block size
512 Bytes – 64
KB
512 bytes – 64
KB
512 bytes – 64
KB
File record table/I-node No No Dynamic
Table 2. Linux file systems.
File system Ext2 Ext3 ReiserFS
Operating systems Linux Linux Linux
Max. partition size
16 TB 16 TB 16 TB
Max. file size Limited by partition
size
Limited by partition
size
Limited by partition
size
Max. file-name length
255 255 255
Restoration (logging) No Yes Yes
Max. files in root Unlimited Unlimited Unlimited
Max. clusters/blocks
~2
32
~2
32
~2
32
Cluster/block size
1–4 KB 1–4 KB 4 KB
File record table/I-node Set at formatting Set at formatting Dynamic
In case you've forgotten your computer engineering units: 1 Kbyte = 1024 Bytes,
1 Mbyte = 1024 Kbytes, 1 Gbyte = 1024 Mbytes, 1 Tbyte = 2
10
Gbytes= 1024 Gbytes, 1
Pbyte = 2
10
Tbytes= 1024 Tbytes, 1 Ebyte = 2
10
Pbytes= 1024 Pbytes.