File System Directory Structure

Question

Consider a disk block having B blocks, F of which are free. Disk address is D bits. The maximum possible and given disk size respectively,assuming Block Size of S Bytes?

1. B,D

2. BS,DS

3. 2^D * S , BS

4. BS,2DS

 

Comments

My Doubt is if Disk address is of D bits then what will be total number of blocks:-

Is it (2^D / S) i.e. Disk address Space / Size of a block.     or      only 2^D only

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its 2^D / S