Eg, UNIX Inodes
A UNIX Inode is the metainformation for UNIX files.
Contains control and allocation information.
Each inode contains 15 block pointers.
first 11 are direct blocks
then single, double, and triple indirect
0
12
13
14
single indirect
double indirect
triple indirect
..
..
..
1024 indirect blocks
1024 indirect
indirect blocks
1024 indirect indirect
indirect blocks
4K blockss
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