Allocation unit size and maximum file size Tags: Hard Drives File Size NTFS HD Storage Last response: January 25, 2012 11:55 PM in Storage Share Rolci January 25, 2012 8:38:47 PM I've been searching the net in vain. I need a table that shows the maximum size of a file that a HD can hold in NTFS when formatted in different allocation unit sizes. Hope that makes sense. Thanks More about : allocation unit size maximum file size fzabkar a c 288 G Storage January 25, 2012 11:33:11 PM http://technet.microsoft.com/en-us/library/cc750355.asp... "With the NTFS file system, you can have a maximum of 2^32 clusters per file. This is an implementation limitation, not a file size restriction." AIUI, this means that a typical NTFS installation that uses 4KB clusters will have a maximum file size of ... 2^32 x 4KB = 16TB RealBeast a c 317 G Storage January 25, 2012 11:55:12 PM AFAIK it does not depend on allocation unit size. As implemented, the maximum file size in NTFS is just under 16Tb -- 1 cluster under. Take a look HERE. Can't find your answer ? Ask ! Publish Related resources SolvedHow large would the speed difference between a 4096 b and a 64 kb allocation unit size after formatting? Forum SolvedHard Drive Allocation Unit size "waste" calculating? Forum Solvedallocation unit size for wd 1tb black Forum Allocation Unit Size for Electronic Storage Forum SolvedUSB drive for flashing BIOS - Allocation unit size? Forum Allocation Unit Size (Formatting 1000GB) Forum Change Allocation unit size with RAID 0 stripe 128 or not? Forum Cluster (allocation unit) size for NTFS in Windows 7 Forum When formatting what is allocation unit size Forum Hitachi 160GB HDD NTFS Allocation Unit Size Recommended Forum X25-M allocation unit size Forum RAID-5: StripeSize and allocation unit size Forum NTFS allocation unit size? Forum Allocation unit size Forum Allocation unit size Forum What size should I use for file allocation size 300 gb disk Forum Best file allocation size? Forum ExFAT allocation size for music files? Forum Maximum file size in win2k advanced server Forum Maximum File Size in Windows XP Forum More resources Read discussions in other Storage categories Hard Drives DVD Drives DVD Writers Optical Media Flash Media NAS/RAID SSD Western Digital !