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'size' and 'size on disk'??

8 posts · originally from https://geek.digit.in/community/threads/size-and-size-on-disk.51071/

G
gopi_vbboy Original post #1
Mar 1, 2007 at 6:13 PM
->what is difference between 'size' and 'size on disk' properties on file properties in windows explorer
dd_wingrider
Mar 1, 2007 at 6:20 PM
The space allocated to files is determined by the cluster size for the formatted partition. Cluster size is higly variable in FAT32/FAT16 file systms, but Windows 2K/XP using NTFS has clusters of 4096 bytes.

To compute the real space allocated to files you need: (FileSize/4096) rounded to the next higher integer x 4096, e.g.
FileSize 37352 bytes
FileSize/4096 = 9.11 rounded to 10

Space Allocated 40960 bytes (4096 x 10)

If the file is then compressed the real space allocation may be lower then native FileSize.
Source: *www.computing.net/windows2000/wwwboard/forum/64093.html
Pathik
Pathik #3
Mar 1, 2007 at 6:25 PM
yup exactly... couldnt hav given a better explanation than that... :)
anandk
anandk #4
Mar 1, 2007 at 7:47 PM
one of my old query; when i had joinded this forum
*www.thinkdigit.com/forum/showthread.php?t=20782&highlight=size :D
47shailesh
Mar 1, 2007 at 7:51 PM
+1 to dd_wingrider i agree the explaination...
G
Mar 1, 2007 at 8:07 PM
So i learnt that 'size on disk' for NTFS less than 'size',more than 'size' in case of FAT32. what is cluster size per byte in FAT32.
dd_wingrider
Mar 1, 2007 at 8:36 PM
gopi_vbboy said:
So i learnt that 'size on disk' for NTFS less than 'size',more than 'size' in case of FAT32. what is cluster size per byte in FAT32.

Default cluster size for FAT, FAT16, FAT32 and NTFS : *support.microsoft.com/kb/140365

Hope it clear some doubts

cheers :)
G
Mar 3, 2007 at 1:20 PM
Thank U

-ressolved-