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FILE SYSTEMS & PARTITIONS

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FILE SYSTEMS & PARTITIONS

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FILE SYSTEM INFO

   Some things you should know about the different file systems and deciding which one is right for you. Each physical hard disk can have up to 4 primary partitions and one extended partition. Only one primary partition can be active at one time. Each extended partition can have as many logical drives as you want. Each primary partition and logical drive can have any one of the following file systems:

FILE SYSTEMS

FAT16--Compatible with Win95a, Win95b, Dos and later.

  • Advantages--available to all operating systems
  • Disadvantage-- waste a lot of disk space on a 2.1 Gig hard drive could be as much as 300 megs, maximum size of partition is 2 gig. See the table below, a cluster can only hold a maximum of one file, so that with a 32k cluster, a 1k file takes up 32k of space so that 31k is wasted by this one file. Multiply this by thousands of little files and your wasted a lot of space.

Total Partition Size

Min Req Cluster Size

Est Space Wasted

16 to 127 Megabytes

2 Kbytes

9.7 Megabytes

128 to 255 Megabytes

4 Kbytes

19.5 Megabytes

256 to 511 Megabytes

8 Kbytes

39.0 Megabytes

512 to 1023 Megabytes

6 Kbytes

78.1 Megabytes

1024 to 2048 Megabytes

32 Kbytes

156.2Megabytes

FAT32--Compatible with Win95b and Win98, ME, NT4, win2000, XP

  • Advantages-- small cluster size, virtually no max size of partition, very little wasted space
  • Disadvantages??”less secure than NTFS, can??™t encrypt or set permission on individual files or directories.
  • NTFS--Compatible with NT operating systems Win2000, Win XP??¦..
    • Advantages--small cluster size, can handle extremely large partitions, increased file security, can compress individual files and folders, and can almost double the effective size of a partition on smaller hard disk.
    • Disadvantages--can only be read by Windows NT Family, although there are second party DOS utilities that will allow dos to read it.
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