Question

If a filesystem has a block size of 4096 bytes, this means that a file comprised of only one byte will still use 4096 bytes of storage. A file made up of 4097 bytes will use 4096 bytes of storage. A file made up of 4097 bytes will use 4096*2=8192 bytes of storage. Knowing this, can you fill in the gaps in the calculate_storage function below, which calculates the total number of bytes needed to store a file of a given size?

1 def calculate_storage(filesize):
2 block_size = 4096
3 # Use floor division to calculate how many blocks are fully occupied
4 full_blocks = ___
5 # Use the modulo operator to check whether there's any remainder
6 partial_block_remainder = ___
7 # Depending on whether there's a remainder or not, return
8 if partial_block_remainder > 0:
9 return ___
10 return ___
11
12 print(calculate_storage(1)) # Should be 4096
13 print(calculate_storage(4096)) # Should be 4096
14 print(calculate_storage(4097)) # Should be 8192
15 print(calculate_storage(6000)) # Should be 8192

Answer 1

def calculate_storage(filesize):

block_size = 4096

full_blocks = filesize // block_size

partial_block = filesize % block_size

if partial_block > 0:

return (full_blocks + 1) * block_size

return filesize

print(calculate_storage(1))

print(calculate_storage(4096))

print(calculate_storage(4097))

Step-by-step explanation:

The python program defines the function 'calculate_storage' that calculates the block storage used. It gets the number of blocks used to store the data by making a floor division to get the integer value, then it checks for remaining spaces in the block. If there are spaces left, it adds one to the full_blocks variable and returns the result of the multiplication of the full_blocks and block_size variables.