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Logical-to-physical address mapping accomplished

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Reference no: EM132292010

LogicalBlock = LogicalAddress / 512

Offset = Logical Address MOD 512

Physical Block # = Starting Position + Block

PhysicalAddress = S+B+O

Homework Question

Consider a file system on a disk that has both logical and physical block sizes of 512 bytes. Assume that the information about each file is already in memory. For each of the three allocation strategies (contiguous, linked, and indexed), answer these questions:

A. How is the logical-to-physical address mapping accomplished in this system? (For the indexed allocation, assume that a file is always less than 512 blocks long.)

B. If we are currently at logical block 11 (the last block accessed was block 11) and want to access logical block 3, how many physical blocks must be read from the disk?

Contiguous

Linked

Indexed

Reference no: EM132292010

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