The document discusses advanced file system management topics including file attributes, encryption, sharing encrypted files, quotas, distributed file system (DFS), and related acronyms. It describes attributes like read only, hidden, and archive. Encrypted file system (EFS) encrypts files using a file encryption key (FEK) stored in the file header and data decryption field (DDF). DFS allows placing shares in a different hierarchy using a DFS root and DFS links. Quotas can limit disk space and warn users.

1. Network Implementation &
Support
Chapter 7
Advanced File System
Management
Eric Vanderburg © 2006

2. Attributes
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Read Only
Hidden
System
Archive
• Attrib command
• Show hidden files
• Show system files
Eric Vanderburg © 2006

3. Other Attributes
• Compression
– Folder turns blue
– Compact /c /u /s
• EFS (Encrypted File System)
– Folder turns green
– Cipher /e (encrypt) /d (decrypt) /s (subfolders)
path
– FEK (File Encryption Key) – stored in the
header and used to encrypt the file
– DDF (Data Decryption Field) – where the FEK
is stored.
Eric Vanderburg © 2006

4. Sharing EFS files
• New to Server 2003
• Advanced Attributes  Details  click
add to allow other users to access the file
Eric Vanderburg © 2006

5. Quotas
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Enabled on volume properties
Enabled or disabled
Deny disk space to offenders
Limit to…
Warning level
Logging
Eric Vanderburg © 2006

6. DFS
• DFS (Distributed File System)
• Allows shares to be placed in a different
order or hierarchy
• Standalone
• Domain based
• DFS root – where all shares are stored –
looks like a shared folder
• DFS link – pointer to other shares
• Replica set
Eric Vanderburg © 2006

7. Acronyms
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DDF, Data Decryption Field
DRF, Data Recovery Field
DFS, Distributed File System
EFS, Encrypting File System
FEK, File Encryption Key
Eric Vanderburg © 2006