SUBJECT: OS
Experiment No.: 10
Problem Statement 1: Readers–Writers File Access with Priority Control
Design a system to simulate RAID storage techniques (RAID 0, RAID 1, RAID 5) for file
operations.
Implement:
• Data distribution across multiple disks using striping, mirroring, and parity
• Read/write operations with disk-level mapping
• Failure simulation of one disk and data recovery using redundancy/parity
Analyze:
• I/O performance (time taken for read/write)
• Reliability under disk failure
• Trade-off between performance and fault tolerance
Code:
Output:
1
Problem Statement 2: Inode-Based File System Representation
Design and implement a simplified UNIX-like file system using inode structures.
The system should:
• Represent files using inode data structure (metadata + block pointers)
• Support:
o Direct, single indirect, and double indirect block allocation
• Convert path names to inode numbers
• Simulate file operations:
o Create, read, write, delete
Display:
• Inode table
• Block allocation status
• File-to-disk mapping
Analyze efficiency of inode-based storage for large vs small files.
Code:
Output:
2
Problem Statement 3: Inode Allocation and Free Space Bitmap Management
Implement:
o Inode allocation table
o Free block management using bitmap
Simulate:
o File creation → inode allocation
o Block allocation → bitmap update
o File deletion → space reclamation
Include:
• Handling of fragmentation
• Reuse of freed blocks and inodes
Display:
• Bitmap status before/after operations
• Inode allocation status
• Disk block usage
Code:
Output:
3