NTFS question! OS

learningIT

What is the difference between NTFS4 and NTFS5.x???

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janmike

NTFS4 is the version of NTFS distributed with NT4. NTFS5 is the version of NTFS distributed with Windows 2000. You have to have NT4 with a certain level of service pack(I don't remember which one) before it can read NTFS5.

Webmaster

I'm sure their is a good article at www.microsoft.com that describes it completely, but here goes from the top of my head:

NTFS 5 was introduced in Windows 2000. XP and 2003 use it as well, and Windows NT4 with SP4 or higher.

NTFS 5 includes the following features NTFS 4 doesn't:
- Sparse file support (ie. when a database server allocates a 4 GB file but it isn't completely filled with data it won't need the entire 4GB on disk either)
- Encrypted file system
- Reparse points
- Change journal
- Disk Quotas

I'm not sure if the list is complete, so I suggest trying a search at the MS site

learningIT

Thank you!

bwolfe

Webmaster wrote:

NTFS 5 was introduced in Windows 2000. XP and 2003 use it as well, and Windows NT4 with SP4 or higher.

Actually I believe NTFS 5 was introduced with NT 4.0 Server.