As you read this don't forget these are limits - you don't need to work up to them (unless you like stressing your computer). Large individual files or very large numbers of files in a folder require a powerful computer is you don't want to be watching the spinning cursor.
Finder/Explorer is never too happy reading really large folders. Consider splitting a large folder's files into smaller sub-folders, especially if you regularly need to access the content from Finder/Explorer windows.
|Operating systems||All versions of Windows and DOS||Windows .NET Server 2003, Windows XP, Windows 2000, Windows 98, Windows 95 OEM Service Release (OSR) 2||Windows .NET Server 2003, Windows XP, and Windows 2000 support NTFS 4 and 5 (previous version of Windows NT support NTFS 4 only)||Pre OS 8.1||OS 8.1 or later, OSX|
|Maximum volume size||4GB||2TB (although Windows XP lets you format only up to 32GB but can read larger volumes)||You can use 64KB clusters to achieve a 256TB volume (any volumes larger than 2TB must be dynamic, not basic)||OS6-7 = 2GB
OS7.5 = 4GB
OS7.5.2 = 2TB
|2TB (up to 21 volumes allowed)|
|Minimum volume size||Floppy disk||512MB||10MB||?||?|
|Maximum file size||4GB||4GB||Size of volume||2GB||2TB|
|Maximum files per volume||approx 65,536||4,177,920||4,294,967,295||32,767 per folder, 64,000 per volume. Suggested 1200 per folder||32,767 per folder, >2Bn per volume. Suggested 1200 per folder|
|Maximum files per volume root folder||512 files or folders *||65,534 files or folders *||n/a||?||?|
* If you use long filenames, you will reduce the number of files per folder.
Question: OS File/folder limits (Win/Mac) [FAQ00002.htm]
Last Update:- 01 June 2006
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