Final Year Project: Using Linux Filesystems Under Windows   Chris Bryden BEng. Electronics and Software Engineering    School of Computer Science   University of Birmingham 11 Having the inode table and the data blocks that are allocated from those inodes physically close on disk provides performance benefits due to reduction in disk head seeks during file I/O operations.   The block groups are located on the disk one after another, the numbering and correspondence of the logical blocks with the logical disk sectors is shown below.   The first group, and hence the copy of the superblock and group descriptors that the  filesystem  uses  is  always  located  at  offset  1024  from  the  beginning  of  the partition. Subsequent groups follow as described above. Sector 0 1 2 3 4 5 6 7 8 9 10 11 12 Boot Block Superblock Group Descriptors Block Bitmap Inode Bitmap Inode Table Data Blocks Block Group 1 Block 0 Block 1 Block 2 Block 3 Block 4 Block 5 Block 6 Offset 1024 bytes Physical sector size of 512 bytes and block size of 1024 bytes shown