Question

Consider a file system that uses inodes to represent files. Disk blocks are 8KB in size, and a pointer to a disk block requires 4 bytes. This file system has 12 direct disk blocks, as well as single, double, and triple indirect disk blocks. What is the maximum size of a file that can be stored in this file system?

Answer 1

64 terabytes

Step-by-step explanation:

Given data:

Size of the disk block = 8 KB

Size required by the pointer to a disk block = 4 bytes

Now,

Size required by 12 direct disk blocks = 12 × 8

Size required by single disk block = 2048 × 8 KB

Size required by double disk block = 2048 × 2048 × 8 KB

size required by triple disk block = 2048 × 2048 × 2048 × 8 KB

Now,

the maximum size of the file that can be stored in the this file system = 12 × 8 + 2048 × 8 KB + 2048 × 2048 × 8 KB + 2048 × 2048 × 2048 × 8 KB = 64 terabytes