Question
In: Computer Science
Assume that the maximum capacity of a file system space is 8TB (1TB = 240 bytes),...
Assume that the maximum capacity of a file system space is 8TB (1TB = 240 bytes), and the disk block size is 2KB. The file control block (FCB) contains an index table of 512 bytes. Answer the following questions:
(1) [4 MARKS] Suppose that the index table only adopts the direct index structure, and stores the disk block numbers occupied by the file. How many bytes are required for each index table entry to represent a disk block number? What is the maximum length of a single file that can be supported by this scheme?
Solutions
Expert Solution
Answer 1:
File system capacity = 
bytes = 
bytes
Disk block size = 
KB = 
bytes = 
bytes
Total number of blocks = (File system capacity) / (Disk block size)
To address 
blocks, 32 bits i.e., 4 bytes are required.
Therefore, the index table entry size = 4
bytes
Number of entries in the index table = (Index table size) / (Index table entry size) = 512 / 4 = 128
Since each entry in the index table points to a block
number.
Therefore, the maximum length of a single file = (Number of entries
in the index table) * (disk block size) = 128 * 2 KB = 256
KB
Question: How many bytes are required for each index table entry to represent a disk block number?
Answer: 4 bytes
Question: What is the maximum length of a single file that can be supported by this scheme?
Answer: 256 KB
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venereology answered 6 months agoRelated Solutions
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Answer the following questions:
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maximum capacity (maximum number of spectators) of sports stadiums.
The table does not include horse-racing or motor-racing
stadiums.
40,000
40,000
45,050
45,500
46,249
48,134
49,133
50,071
50,096
50,466
50,832
51,500
51,500
51,900
52,000
52,132
52,200
52,530
52,692
53,864
54,000
55,000
55,000
55,000
55,000
55,000
55,000
55,082
57,000
58,008
59,680
60,000
60,000
60,492
60,580
62,380
62,872
64,035
65,000
65,050
65,647
66,000
66,161
67,428
68,349
68,976
69,372
70,107
70,585
71,594
72,000
72,922
73,379
74,500
75,025...
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Table 6.0 shows a sample of the
maximum capacity (maximum number of spectators) of sports stadiums.
The table does not include horse-racing or motor-racing
stadiums.
40,000
40,000
45,050
45,500
46,249
48,134
49,133
50,071
50,096
50,466
50,832
51,500
51,500
51,900
52,000
52,132
52,200
52,530
52,692
53,864
54,000
55,000
55,000
55,000
55,000
55,000
55,000
55,082
57,000
58,008
59,680
60,000
60,000
60,492
60,580
62,380
62,872
64,035
65,000
65,050
65,647
66,000
66,161
67,428
68,349
68,976
69,372
70,107
70,585
71,594
72,000
72,922
73,379
74,500
75,025...
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