Cluster size for the file system
How can I view the allocation unit size of a NTFS partition in Windows?
C:\temp>fsutil fsinfo drives Drives: C:\ D:\ E:\ F:\ G:\ I:\ J:\ N:\ O:\ P:\ S:\ C:\temp>fsutil fsinfo ntfsInfo N: NTFS Volume Serial Number : 0xfe5a90935a9049f3 NTFS Version : 3.1 LFS Version : 2.0 Number Sectors : 0x00000002e15befff Total Clusters : 0x000000005c2b7dff Free Clusters : 0x000000005c2a15f0 Total Reserved : 0x0000000000000000 Bytes Per Sector : 512 Bytes Per Physical Sector : 512 Bytes Per Cluster : 4096 Bytes Per FileRecord Segment : 1024 Clusters Per FileRecord Segment : 0 Mft Valid Data Length : 0x0000000000040000 Mft Start Lcn : 0x00000000000c0000 Mft2 Start Lcn : 0x0000000000000002 Mft Zone Start : 0x00000000000c0000 Mft Zone End : 0x00000000000cc820 Resource Manager Identifier : 560F51B2-CEFA-11E5-80C9-98BE94F91273 C:\temp>fsutil fsinfo ntfsInfo N: NTFS Volume Serial Number : 0x36acd4b1acd46d3d NTFS Version : 3.1 LFS Version : 2.0 Number Sectors : 0x00000002e15befff Total Clusters : 0x0000000005c2b7df Free Clusters : 0x0000000005c2ac28 Total Reserved : 0x0000000000000000 Bytes Per Sector : 512 Bytes Per Physical Sector : 512 Bytes Per Cluster : 65536 Bytes Per FileRecord Segment : 1024 Clusters Per FileRecord Segment : 0 Mft Valid Data Length : 0x0000000000010000 Mft Start Lcn : 0x000000000000c000 Mft2 Start Lcn : 0x0000000000000001 Mft Zone Start : 0x000000000000c000 Mft Zone End : 0x000000000000cca0 Resource Manager Identifier : 560F51C3-CEFA-11E5-80C9-98BE94F91273
|
Cluster size |
NTFS Max Size |
|
512 bytes |
2,199,023,255,040 (2TB) |
|
1024 bytes |
4,398,046,510,080 (4TB) |
|
2048 bytes |
8,796,093,020,160 (8TB) |
|
4096 bytes |
17,592,186,040,320 (16TB) Default cluster size |
|
8192 bytes |
35,184,372,080,640 (32TB) |
|
16384 bytes |
70,368,744,161,280 (64TB) |
|
32768 bytes |
140,737,488,322,560 (128TB) |
|
65536 bytes |
281,474,976,654,120 (256TB) |