Operating System - File System closed

Question

Consider a file system with 4096 byte blocks and 32-bit disk and file block pointers. Each file has 13 direct pointers, 4 singly-indirect pointers, a doubly-indirect pointer, and a triply-indirect pointer. The maximum disk size and the number of i-nodes that can fit in single block are........... and ........... respectively.

Comments

is the answer 1024 inodes and 4.002 GB disk size

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answer is 53 inodes and 2^42 B

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okay so inode in question was the number of pointers the index of a file had , which in this case was (13+4+1+1=19) for a file and a block of size 4096 bytes can accumulate (4096/(19*4)=53.8) 53 inodes altogether

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correct

Answer 1

Since block pointers are 32 bits, total size = 232 × 4096 = $2^{44}$ bytes. bytes maximum.

An inode has 13 + 4 + 1 + 1 = 19 pointers = 19 × 32 bits = 76 bytes.

Hence, the number of inodes per block = ⎣4096/76⎦ = 53.