FILE SYSTEM

FILE SYSTEM

1. F.S. INTERFACE

   • Kind of File
     • Free formed
     • Indexed
     • Structure
       • Kinds
         • None
           • sequence of words
           • Bytes
         • Simple record structure
           • Lines
           • Fixed length
           • Variable length
         • Complex Structures
           • Formatted document
           • Relocatable load file
   • Attributes of file
     • Name
     • Creator
     • Date
     • Type
     • Permissions
     • Identifier
     • Location
     • Size
     • Protection
     • Time
     • Date
   • Structure
     • Understand
       • format in order to create a process.
       • how directory files look
       • file types.

2. Acces methods

   • Sequential Access
   • Direct access
   • Other access methods
     • Indexed

3. Directory Structure

   • name
   • Type
   • Location
   • Size
   • Position
   • Protection
   • Usage
   • Mounting

4. Protection

5. FS. IMPLEMENTATION

   • Structure
     • Application Programs
     • Logical File System
     • Organization Module
     • Basic File System
     • IO Control
     • Devices
   • Virtual File System
   • Allocation Methods
     • Contiguous Allocation
     • Linked Allocation
     • Indexed Allocation
     • Unix method
   • Free Space Management
     • Bit Vector Method
     • Free List Method
     • Grouping Method
     • Counting Method
   • Efficiency and Performance

6. SUN Network File System

   • The Mount Protocol
   • The Nfs Protocol
   • Nfs architecture: