NTFS question! OS

learningIT

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

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.